CASCACascade Atlas

Evidence dossier

CVE-2022-26501

Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).

Exploited in the wild (CISA KEV since Dec 13, 2022). NVD reports CVSS 3.1 9.8. EPSS estimates 4.1% exploit likelihood as of Aug 27, 2026.

71.2–72.7Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).

State
PUBLISHED
Published
Mar 17, 2022
Updated
Oct 21, 2025
Evidence coverage
98%

Evidence chronology

What was known when

Download this view's receipt →
  1. 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 ↗
  2. 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 ↗
  3. Source dateSource date omittedFirst observed by CASCA
    mitre

    Record text: Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).

    Inspect raw assertion
    Field
    container
    Value
    Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Veeam Backup & Replication Remote Code Execution Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Veeam Backup & Replication Remote Code Execution Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 4.1% probability · 90.01th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.041040000000; percentile 0.900080000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Dec 13, 2022 · first observed Jul 19, 2026

Exploit likelihood4.10%

FIRST EPSS · score date Aug 27, 2026 · 90th percentile · first observed Aug 27, 2026

SeverityCVSS 9.8

NVD · CVSS 3.1 · first observed Jul 19, 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-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 ↗
mitreOriginal assertion
Record text

Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).

Inspect raw assertion
Field
container
Value
Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2).
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

Veeam Backup & Replication Remote Code Execution Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Veeam Backup & Replication Remote Code Execution Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

4.1% probability · 90.01th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.041040000000; percentile 0.900080000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
8Underlying assertions
1Canonical products
8Target assertions
0Constraint assertions

Grouped from 1 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

2 scope groups

mitre · source assertedn/an/aDirect source scope
Affected: n/a
Source-reported scope

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

Inspect raw assertion[{"status": "affected", "version": "n/a"}]
NVD CPE · APPLICATIONveeamveeam_backup_&_replicationVulnerable target · 8 assertions
Any version (unconstrained) (>= 10.0.0.4442, < 10.0.1.4854); Any version (unconstrained) (>= 11.0.0.825, < 11.0.1.1261); Version 10.0.1.4854; Version 11.0.1.1261Canonical identity product-4ca0c9ca76ce25c8ab3fc111e7891d840034db35d7ea3add60a2990a60473a79Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:veeam:veeam_backup_\&_replication:10.0.1.4854:-:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    12e8f01f-4e41-46f0-94bc-dd5174ddf393
  2. cpe:2.3:a:veeam:veeam_backup_\&_replication:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 10.0.0.4442; through excluding 10.0.1.4854
    Match ID
    837d781d-e21b-458c-8d4a-59949ce4d580
  3. cpe:2.3:a:veeam:veeam_backup_\&_replication:10.0.1.4854:p20210609:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 4
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    06be9b78-075c-48e6-817a-5e0a89983ebc
  4. cpe:2.3:a:veeam:veeam_backup_\&_replication:10.0.1.4854:p20201202:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 3
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    e0417823-7418-4294-be57-0304772dfe39
  5. cpe:2.3:a:veeam:veeam_backup_\&_replication:11.0.1.1261:p20211123:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 6
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    8158d6bc-2041-4600-b935-ad928621d987
  6. cpe:2.3:a:veeam:veeam_backup_\&_replication:11.0.1.1261:p20211211:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 7
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    54a5147a-341a-4790-aaa8-df2648423c50
  7. cpe:2.3:a:veeam:veeam_backup_\&_replication:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 1
    Logic
    OR
    Version bounds
    from including 11.0.0.825; through excluding 11.0.1.1261
    Match ID
    fd0c1bcb-a018-4425-ac3d-0ce6eaef372f
  8. cpe:2.3:a:veeam:veeam_backup_\&_replication:11.0.1.1261:-:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 5
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    ec28d606-0a9b-46e5-a88c-8041357979db

Affected-product evidence

Accepted scope and product mapping

1 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-acc9e78eb332d4adec4ddd85e2956638ab6a8c581e840b238feb2aebc007bf66 · product-4ca0c9ca76ce25c8ab3fc111e7891d840034db35d7ea3add60a2990a60473a79

Source class
Nvd cpe vulnerable target
Assertions
8
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
2e821280-6872-4efa-b5ea-e1eda1ee099469963f32-d3e9-4284-91de-5b1dab9edbc1d600fea5-ea7b-4067-bdb2-96a7acdf96b6d643552b-819d-4c68-8787-d1f858eb6988d95b0dc4-21dc-4148-bd8a-2e350ff68dbddc7202c2-fb41-43bc-b307-d8bc21ef5835eb45a3f1-6158-40f9-9bd2-228d04c3dcfbfe78199c-7e64-467d-b3d2-e0746a7a6122
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
a94e23a0-3016-4dcb-aa11-b51cdd3176cf

Assessments

CVSS by origin

9.8
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8
CVE Program sourceCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
CISA-ADPCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

9.8Priority eligible

CISA-ADP

CVSS 3.1 · Secondary · Independent enrichment · rank 2

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Validation
Valid match
Recomputed
9.8
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.