CASCACascade Atlas

Evidence dossier

CVE-2009-3953

The U3D implementation in Adobe Reader and Acrobat 9.x before 9.3, 8.x before 8.2 on Windows and Mac OS X, and 7.x before 7.1.4 allows remote attackers to execute arbitrary…

Exploited in the wild (CISA KEV since Jun 8, 2022). NVD reports CVSS 3.1 8.8. EPSS estimates 83.9% exploit likelihood as of Aug 26, 2026.

86.1–86.8Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

The U3D implementation in Adobe Reader and Acrobat 9.x before 9.3, 8.x before 8.2 on Windows and Mac OS X, and 7.x before 7.1.4 allows remote attackers to execute arbitrary code via malformed U3D data in a PDF document, related to a CLODProgressiveMeshDeclaration "array boundary issue," a different vulnerability than CVE-2009-2994.

State
PUBLISHED
Published
Jan 13, 2010
Updated
Oct 22, 2025
Evidence coverage
98%

Evidence chronology

What was known when

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  1. Source dateSource date omittedFirst observed by CASCA
    adobe

    Record text: The U3D implementation in Adobe Reader and Acrobat 9.x before 9.3, 8.x before 8.2 on Windows and Mac OS X, and 7.x before 7.1.4 allows remote attackers to execute arbitrary code via malformed U3D data in a PDF document, related to a CLODProgressiveMeshDeclaration "array boundary issue," a different vulnerability than CVE-2009-2994.

    Inspect raw assertion
    Field
    container
    Value
    The U3D implementation in Adobe Reader and Acrobat 9.x before 9.3, 8.x before 8.2 on Windows and Mac OS X, and 7.x before 7.1.4 allows remote attackers to execute arbitrary code via malformed U3D data in a PDF document, related to a CLODProgressiveMeshDeclaration "array boundary issue," a different vulnerability than CVE-2009-2994.
    Original evidence ↗
  2. 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 ↗
  3. 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 ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Adobe Acrobat and Reader Universal 3D Remote Code Execution Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Adobe Acrobat and Reader Universal 3D Remote Code Execution Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 83.86% probability · 99.67th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.838550000000; percentile 0.996700000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Jun 8, 2022 · first observed Jul 19, 2026

Exploit likelihood83.86%

FIRST EPSS · score date Aug 26, 2026 · 99.7th percentile · first observed Aug 26, 2026

SeverityCVSS 8.8

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

adobeOriginal assertion
Record text

The U3D implementation in Adobe Reader and Acrobat 9.x before 9.3, 8.x before 8.2 on Windows and Mac OS X, and 7.x before 7.1.4 allows remote attackers to execute arbitrary code via malformed U3D data in a PDF document, related to a CLODProgressiveMeshDeclaration "array boundary issue," a different vulnerability than CVE-2009-2994.

Inspect raw assertion
Field
container
Value
The U3D implementation in Adobe Reader and Acrobat 9.x before 9.3, 8.x before 8.2 on Windows and Mac OS X, and 7.x before 7.1.4 allows remote attackers to execute arbitrary code via malformed U3D data in a PDF document, related to a CLODProgressiveMeshDeclaration "array boundary issue," a different vulnerability than CVE-2009-2994.
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 ↗
CISA KEVOriginal assertion
Exploitation cataloged

Adobe Acrobat and Reader Universal 3D Remote Code Execution Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Adobe Acrobat and Reader Universal 3D Remote Code Execution Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

83.86% probability · 99.67th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.838550000000; percentile 0.996700000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
10Underlying assertions
6Canonical products
8Target assertions
2Constraint assertions

Grouped from 3 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

7 scope groups

adobe · 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 · APPLICATIONadobeacrobatVulnerable target · 3 assertions
Any version (unconstrained) (>= 7.0, < 7.1.4); Any version (unconstrained) (>= 8.0, < 8.2); Any version (unconstrained) (>= 9.0, < 9.3)Canonical identity product-ed5d44367bdcb90bad355d7e7359a851dedc6267deefc08f1c50b65634b9019cLinked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:adobe:acrobat:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 2
    Logic
    OR
    Version bounds
    from including 9.0; through excluding 9.3
    Match ID
    ea95cc75-bf25-4beb-b646-acdbbe32af4f
  2. cpe:2.3:a:adobe:acrobat:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 1
    Logic
    OR
    Version bounds
    from including 8.0; through excluding 8.2
    Match ID
    9670133c-09fa-41f2-b0f7-bfe960e30b71
  3. cpe:2.3:a:adobe:acrobat:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 7.0; through excluding 7.1.4
    Match ID
    c1329474-a9cd-44c3-828c-a0d53418300b
NVD CPE · OPERATING SYSTEMapplemac_os_xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-94613e1f5039e71a9805f20421d56ac6a61e2707d3f97a08fdf6823a65dc7b76Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:o:apple:mac_os_x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    4781bf1e-8a4e-4aff-9540-23d523ee30dd
NVD CPE · OPERATING SYSTEMmicrosoftwindowsEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-6a798dc931affc038ba266631a506d54b455ffebd96b4fae68f77b6bd7aef178Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a2572d17-1de6-457b-99cc-64afd54487ea
NVD CPE · OPERATING SYSTEMopensuseopensuseVulnerable target · 2 assertions
Version 11.1; Version 11.2Canonical identity product-66ca8198d1887ac9754d1aad85d76f1edfc54c873eb2cd9bedf566863f5e07bdLinked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:opensuse:opensuse:11.2:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a01c8b7e-eb19-40ea-b1d2-9ae5ea536c95
  2. cpe:2.3:o:opensuse:opensuse:11.1:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    fbf7b6a8-3df9-46ec-a90e-6ef68c39f883
NVD CPE · OPERATING SYSTEMsuselinux_enterpriseVulnerable target · 2 assertions
Version 10.0Canonical identity product-038de80f359a5aac32cd65e8236e3fbfb0378cf24fd11b2c584ad9b773beda89Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:suse:linux_enterprise:10.0:sp3:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 4
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    1193a7e6-dcb4-4e79-a509-1d6948153a57
  2. cpe:2.3:o:suse:linux_enterprise:10.0:sp2:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 3
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    6a3b50ee-f432-40be-b422-698955a6058d
NVD CPE · APPLICATIONsuselinux_enterprise_debuginfoVulnerable target · 1 assertions
Version 11Canonical identity product-c114d55b1b77d823f5abd8527dc5c1d6a1fc5b140f4ff55da92296cfc7f95ca0Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:suse:linux_enterprise_debuginfo:11:-:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    c76d0c17-2aff-4209-bbcd-36166df7f974

Affected-product evidence

Accepted scope and product mapping

4 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-6bbcd126779403146e957d68529786b086421e0676d9e90a4d53d03594694fb2 · product-038de80f359a5aac32cd65e8236e3fbfb0378cf24fd11b2c584ad9b773beda89

Source class
Nvd cpe vulnerable target
Assertions
2
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
8f8e50b2-127d-4e16-acb9-b0f3e8128e64d2be1dce-f392-475e-a586-b32cc6dd94e6
Mapping establishedEvidence supported

vendor-f98e1750e4b030e2bb71130d14421ff255427227a8b696c92978cf6c77fc265d · product-66ca8198d1887ac9754d1aad85d76f1edfc54c873eb2cd9bedf566863f5e07bd

Source class
Nvd cpe vulnerable target
Assertions
2
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
292d3adf-9307-4683-a011-c57c6b8edcc8834f76cb-1ac4-45f0-9a0e-c6c1a906dac8
Mapping establishedEvidence supported

vendor-6bbcd126779403146e957d68529786b086421e0676d9e90a4d53d03594694fb2 · product-c114d55b1b77d823f5abd8527dc5c1d6a1fc5b140f4ff55da92296cfc7f95ca0

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
ca0ed7d0-4261-469e-afb7-4665c84928ae
Mapping establishedEvidence supported

vendor-70d8e9d1eb9ce5b2e6b4c9351aebc88bced6ea77611cbc8d5cdbe8115b6faed8 · product-ed5d44367bdcb90bad355d7e7359a851dedc6267deefc08f1c50b65634b9019c

Source class
Nvd cpe vulnerable target
Assertions
3
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
5f70c318-c1b0-496f-84cb-dfc0fd84e2bda207fefa-3e88-4dbc-9a7a-6a62a499e9dec0db160c-50f6-4f35-a53e-85b88d9e7469
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
ee38f5e1-a4e2-4525-9ba0-89327d647308

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
10.0
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:L/Au:N/C:C/I:C/A:C
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.