CASCACascade Atlas

Evidence dossier

CVE-2022-2294

Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Exploited in the wild (CISA KEV since Aug 25, 2022). NVD reports CVSS 3.1 8.8. EPSS estimates 70.5% exploit likelihood as of Aug 26, 2026.

78.8–91.4Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

State
PUBLISHED
Published
Jul 28, 2022
Updated
Aug 4, 2026
Evidence coverage
85%

Evidence chronology

What was known when

Download this view's receipt →
  1. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: WebRTC Heap Buffer Overflow Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    WebRTC Heap Buffer Overflow Vulnerability
    Original evidence ↗
  2. Source dateSource date omittedFirst observed by CASCA
    Chrome

    Record text: Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

    Inspect raw assertion
    Field
    container
    Value
    Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
    Original evidence ↗
  3. Source dateSource date omittedFirst observed by CASCA
    CISA-ADP

    Record text: CISA ADP Vulnrichment

    Inspect raw assertion
    Field
    container
    Value
    CISA ADP Vulnrichment
    Original evidence ↗
  4. Source dateSource date omittedFirst observed by CASCA
    CVE Program

    Record text: CVE Program Container

    Inspect raw assertion
    Field
    container
    Value
    CVE Program Container
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 70.46% probability · 99.34th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.704610000000; percentile 0.993380000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Aug 25, 2022 · first observed Jul 19, 2026

Exploit likelihood70.46%

FIRST EPSS · score date Aug 26, 2026 · 99.3th percentile · first observed Aug 26, 2026

SeverityCVSS 8.8

NVD · CVSS 3.1 · first observed Aug 4, 2026 · same-version scores align in this snapshot

Evidence detail

Source limits and decisions

Why each evidence state has this value

casca-unknown-reasons-v1
Exploitation statusEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Aug 27, 2026
Resolution
None
Affected productsSource-reported scope

The cited source assertion is retained while canonical product linkage remains open.

Revision
casca-factor-d-obligations-v1
Cutoff
Aug 27, 2026
Resolution
Resolve identity

Source comparison

Who said what

CISA KEVOriginal assertion
Exploitation cataloged

WebRTC Heap Buffer Overflow Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
WebRTC Heap Buffer Overflow Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
ChromeOriginal assertion
Record text

Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Inspect raw assertion
Field
container
Value
Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA-ADPIndependent enrichment
Record text

CISA ADP Vulnrichment

Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CVE ProgramDerivative copy
Record text

CVE Program Container

Inspect raw assertion
Field
container
Value
CVE Program Container
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

70.46% probability · 99.34th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.704610000000; percentile 0.993380000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
31Underlying assertions
12Canonical products
31Target assertions
0Constraint assertions

Grouped from 5 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.

Identity source boundaries
  • Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z27d65b0f-b718-4b4f-bb79-c47c68d09dfa
  • Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z955dae73-7302-438b-aee1-058d7cc5d48e

13 scope groups

Chrome · source assertedGoogleChromeDirect source scope
Affected: unspecified to before 103.0.5060.114 (custom comparison)
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "unspecified", "lessThan": "103.0.5060.114", "versionType": "custom"}]
NVD CPE · OPERATING SYSTEMappleipadosVulnerable target · 1 assertions
Any version (unconstrained) (< 15.6)Canonical identity product-8e7094ac066248cd4828b6ec8e3a96d010ed1c68f6083af46638775d737da0adLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 0
    Logic
    OR
    Version bounds
    through excluding 15.6
    Match ID
    f5e4f87a-8003-43eb-99f7-35c82aea4dc0
NVD CPE · OPERATING SYSTEMappleiphone_osVulnerable target · 1 assertions
Any version (unconstrained) (< 15.6)Canonical identity product-665d7155d02581979844685e7fca6c2680af997f9200af455887b1c71c483272Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 1
    Logic
    OR
    Version bounds
    through excluding 15.6
    Match ID
    b6fa9fe3-1891-405c-b191-04cab84add46
NVD CPE · OPERATING SYSTEMapplemacosVulnerable target · 2 assertions
Any version (unconstrained) (< 11.6.8); Any version (unconstrained) (>= 12.0, < 12.5)Canonical identity product-d6f53ba981bb58ea2b0d24855b8ff4a18555e3a17a9dce0d38460a69537bbc63Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 21
    Logic
    OR
    Version bounds
    from including 12.0; through excluding 12.5
    Match ID
    bfabc0c7-944c-4b46-a985-8b4f8bf93f54
  2. cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 20
    Logic
    OR
    Version bounds
    through excluding 11.6.8
    Match ID
    98d9705d-81a6-421c-973c-a2e57d1ef51d
NVD CPE · OPERATING SYSTEMapplemac_os_xVulnerable target · 18 assertions
Any version (unconstrained) (< 10.15.7); Version 10.15.7Canonical identity product-94613e1f5039e71a9805f20421d56ac6a61e2707d3f97a08fdf6823a65dc7b76Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 4
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    f12cc8b5-c1eb-419e-8496-b9a3864656ad
  2. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-004:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 19
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    1e463183-7e29-464f-b459-f3e1d62501fc
  3. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 14
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    50f21a3c-0ac3-48c5-a4f8-5a7b478875b4
  4. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 13
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    012052b5-9aa7-4fd3-9c80-5f615330039d
  5. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-001:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 16
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    156a6382-2bd3-4882-90b2-8e7cf6659e17
  6. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-005:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 6
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    7fd7176c-f4d1-43a7-9e49-ba92ca0d9980
  7. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 10
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a54d63b7-b92b-47c3-b1c5-9892e5873a98
  8. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-007:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 7
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2703de0b-8a9e-4a9d-9ae8-028e22bf47ca
  9. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-008:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 15
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    8e974dc6-f7d9-4389-9af9-863f6e419ce6
  10. cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 3
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a654b8a2-fc30-4171-b0bb-366cd7ed4b6a
  11. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 9
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    d425c653-37a2-448c-bf2f-b684adb08a26
  12. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-003:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 18
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    49f537a0-dc42-4176-b22f-c80d179dd99d
  13. cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 2
    Logic
    OR
    Version bounds
    through excluding 10.15.7
    Match ID
    ef8c1cb5-dacb-449c-9e07-e477142c589f
  14. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 8
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    0f441a43-1669-478d-9ec8-e96882de4f9f
  15. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-002:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 17
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    20a2fdb2-6712-406a-9896-c0b44508b07d
  16. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 12
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    d337ee21-2f00-484d-9285-f2b0248d7a19
  17. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 11
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    3456176f-9185-4ee2-a8ce-3d989d674ab7
  18. cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 5
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    f1f4bf7f-90d4-4668-b4e6-b06f4070f448
NVD CPE · OPERATING SYSTEMappletvosVulnerable target · 1 assertions
Any version (unconstrained) (< 15.6)Canonical identity product-e5ea88731ef28ba75a5b40a72b650d8199d1f49ce8c4cd688de7cdb41dc8b9fbLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 22
    Logic
    OR
    Version bounds
    through excluding 15.6
    Match ID
    83fc1965-2381-49ff-9521-355d29b28b71
NVD CPE · OPERATING SYSTEMapplewatchosVulnerable target · 1 assertions
Any version (unconstrained) (< 8.7)Canonical identity product-1b28e85eba5cb27cd93d563b4ea63a555b916484cee543c65fdbe57d529fc0d1Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 23
    Logic
    OR
    Version bounds
    through excluding 8.7
    Match ID
    8eb2af3c-b2a0-41ad-9c3e-14b220620ff0
NVD CPE · APPLICATIONfedoraprojectextra_packages_for_enterprise_linuxVulnerable target · 1 assertions
Version 8.0Canonical identity product-1a7394a32cbb34bf1e0543f479e11a334101bfaa42ce497b5928d876962157b0Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:fedoraproject:extra_packages_for_enterprise_linux:8.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    bb176ac3-3cda-4dda-9089-c67b2f73aa62
NVD CPE · OPERATING SYSTEMfedoraprojectfedoraVulnerable target · 2 assertions
Version 35; Version 36Canonical identity product-c96c7662a6606ed7594747da3d7ba9ee3a9758ab11658f6a3f42616361472e47Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    80e516c0-98a4-4ade-b69f-66a772e2baaa
  2. cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    5c675112-476c-4d7c-bcb9-a2fb2d0bc9fd
NVD CPE · APPLICATIONgooglechromeVulnerable target · 1 assertions
Any version (unconstrained) (< 103.0.5060.114)Canonical identity product-6239ec405e2e1cdd75fd8ed01bb6845a448ecca3c3edcc8b0c5ccc2adb8b6bcdLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    through excluding 103.0.5060.114
    Match ID
    2c5c5639-a741-4db9-a5cb-a61d870ab8bc
NVD CPE · APPLICATIONwebkitgtkwebkitgtkVulnerable target · 1 assertions
Any version (unconstrained) (< 2.36.5)Canonical identity product-7331691d1ac02379383cb61b95492a415169570a5c6729802971bb59efd91092Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    2 · node/0 · match 0
    Logic
    OR
    Version bounds
    through excluding 2.36.5
    Match ID
    a5d47424-f907-4f9b-ba4d-b28362754c37
NVD CPE · APPLICATIONwebrtc_projectwebrtcVulnerable target · 1 assertions
Version not applicableCanonical identity product-442857c4c962822b8702a0715f6cbd58c891875bada71e38c9e7f8562504007bLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:webrtc_project:webrtc:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    4 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a512f860-997e-44ac-9908-5f196be2937a
NVD CPE · APPLICATIONwpewebkitwpe_webkitVulnerable target · 1 assertions
Any version (unconstrained) (< 2.36.5)Canonical identity product-ecfcadc70c55ee6744411b43602d22503fa991d5f8b0e3924590864ec7945cc6Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    2 · node/0 · match 1
    Logic
    OR
    Version bounds
    through excluding 2.36.5
    Match ID
    979a5c2a-8bd4-4adf-9fe5-06019ff45b18

Affected-product evidence

Accepted scope and product mapping

0 canonical links · 2 source-reported links

Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class
Direct cve affected
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
3046465b-e309-4569-8172-3b2200530b04
Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class
Nvd cpe vulnerable target
Assertions
31
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
0320290f-08b5-4f2f-84ca-449581df77f703a0cd35-d72d-4ae7-b278-d57a97b51c210a02a1a2-e96b-449f-84e9-f981dde441211f8722bf-c8f9-4fe3-b682-497045d05a142c9597a6-876b-42cd-87c7-c37d58f14bd92e4b5c93-32a5-4618-8436-d59d30dbe7d536f4e590-0935-4804-b104-c71e683b1858371fc0e5-e44e-42c7-8c7d-7fc014d7a1d637aa920b-8e71-4211-ae1b-38ea5409674a451a3828-778f-4165-b33a-9e0207876f5c46628652-45c7-4b59-bf32-a61a7d24fe6e468a2be7-1f37-4d05-ae63-fb9b746da42b55bee7a7-d170-4157-9fd6-5c191e3722667288802d-977e-42ac-9558-abde502877317d2be5f6-cbe7-4d1e-ab0e-0873d495ed3d852cfceb-2e06-4f06-b311-d85650e292a19e9465ef-f691-4a59-8142-a25badda4d62a85caa15-36b0-4f48-89ad-f6fae621ae47aacbe42a-9c37-4a05-a6db-1efd504e10c4ace9ad4a-cb26-422a-bc9d-8228d268fcb9ad822530-6de0-466c-b822-33affdb3f707b2a0c9ae-f931-4821-a7a2-78284567298db5f9336a-b96f-4758-bad9-48de4258e209bc027df2-294a-4871-97ae-af0bab409e90c2d84be9-135e-42d6-ab79-a6d62589efafcea42f1f-0b3e-4062-9f49-edf6146a65afd17f8407-5723-425f-b19c-b202f0ea28cfde4c81bb-ae8a-483e-bde0-0278a4db4569e5293afb-95f3-4a5c-8ae2-99b37ce0a412f0fe91b6-42f3-4fbe-b2a3-cb8135614cedf2adc96b-842b-4c9d-a394-ca7fe8e37dcc

Assessments

CVSS by origin

8.8
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8
CVE Program sourceCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8
CISA-ADPCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

8.8Priority eligible

CISA-ADP

CVSS 3.1 · Secondary · Independent enrichment · rank 2

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Validation
Valid match
Recomputed
8.8
Decision reason
Evidence supported
Policy
casca-direct-cvss-eligibility-v1

Assessments are retained side by side under closed precedence. Cascade never averages CVSS.

Evidence boundaries

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
  • NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
  • OSV aggregation and OSV-converted NVD material are not independent corroboration.
  • Red Hat facts are vendor assertions for the exact supplied products.
  • Nonmembership and not-yet-observed states are not proof of safety.