Evidence dossier

CVE-2009-1862

Unspecified vulnerability in Adobe Reader and Acrobat 9.x through 9.1.2, and Adobe Flash Player 9.x through 9.0.159.0 and 10.x through 10.0.22.87, allows remote attackers to…

Exploited in the wild (CISA KEV since Jun 8, 2022). NVD reports CVSS 3.1 7.8. EPSS estimates 25.0% exploit likelihood as of Aug 27, 2026.

73.6–74.8Priority evidence range

Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

Unspecified vulnerability in Adobe Reader and Acrobat 9.x through 9.1.2, and Adobe Flash Player 9.x through 9.0.159.0 and 10.x through 10.0.22.87, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via (1) a crafted Flash application in a .pdf file or (2) a crafted .swf file, related to authplay.dll, as exploited in the wild in July 2009.

State: PUBLISHED
Published: Jul 23, 2009
Updated: Oct 22, 2025
Evidence coverage: 97%

Evidence chronology

What was known when

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Source dateSource date omittedFirst observed by CASCAJul 19, 2026
CISA-ADP
Record text: CISA ADP Vulnrichment
Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Original evidence ↗
Source dateSource date omittedFirst observed by CASCAJul 19, 2026
CVE Program
Record text: CVE Program Container
Inspect raw assertion
Field
container
Value
CVE Program Container
Original evidence ↗
Source dateSource date omittedFirst observed by CASCAJul 19, 2026
mitre
Record text: Unspecified vulnerability in Adobe Reader and Acrobat 9.x through 9.1.2, and Adobe Flash Player 9.x through 9.0.159.0 and 10.x through 10.0.22.87, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via (1) a crafted Flash application in a .pdf file or (2) a crafted .swf file, related to authplay.dll, as exploited in the wild in July 2009.
Inspect raw assertion
Field
container
Value
Unspecified vulnerability in Adobe Reader and Acrobat 9.x through 9.1.2, and Adobe Flash Player 9.x through 9.0.159.0 and 10.x through 10.0.22.87, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via (1) a crafted Flash application in a .pdf file or (2) a crafted .swf file, related to authplay.dll, as exploited in the wild in July 2009.
Original evidence ↗
Source dateJul 16, 2026First observed by CASCAJul 19, 2026
CISA KEV
Exploitation cataloged: Adobe Acrobat and Reader, Flash Player Unspecified Vulnerability
Inspect raw assertion
Field
observed_exploitation
Value
Adobe Acrobat and Reader, Flash Player Unspecified Vulnerability
Original evidence ↗
Source dateAug 27, 2026First observed by CASCAAug 27, 2026
FIRST EPSS
EPSS score: 25.01% probability · 97.75th percentile
Inspect raw assertion
Field
model_probability
Value
Probability 0.250060000000; percentile 0.977520000000
Original evidence ↗

ExploitationCatalog member

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

Exploit likelihood25.01%

FIRST EPSS · score date Aug 27, 2026 · 97.8th percentile · first observed Aug 27, 2026

SeverityCVSS 7.8

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 CASCAJul 19, 2026Original evidence ↗

CVE ProgramDerivative copy

Record text

CVE Program Container

Inspect raw assertion

Field: container
Value: CVE Program Container

Source dateSource date omittedFirst observed by CASCAJul 19, 2026Original evidence ↗

mitreOriginal assertion

Record text

Inspect raw assertion

Field: container
Value: Unspecified vulnerability in Adobe Reader and Acrobat 9.x through 9.1.2, and Adobe Flash Player 9.x through 9.0.159.0 and 10.x through 10.0.22.87, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via (1) a crafted Flash application in a .pdf file or (2) a crafted .swf file, related to authplay.dll, as exploited in the wild in July 2009.

Source dateSource date omittedFirst observed by CASCAJul 19, 2026Original evidence ↗

CISA KEVOriginal assertion

Exploitation cataloged

Adobe Acrobat and Reader, Flash Player Unspecified Vulnerability

Inspect raw assertion

Field: observed_exploitation
Value: Adobe Acrobat and Reader, Flash Player Unspecified Vulnerability

Source dateJul 16, 2026First observed by CASCAJul 19, 2026Original evidence ↗

FIRST EPSSOriginal assertion

EPSS score

25.01% probability · 97.75th percentile

Inspect raw assertion

Field: model_probability
Value: Probability 0.250060000000; percentile 0.977520000000

Source dateAug 27, 2026First observed by CASCAAug 27, 2026Original evidence ↗

Applicability

Cited product scope

Trace impact →

4Underlying assertions

3Canonical products

4Target assertions

0Constraint assertions

Grouped from 2 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

Search scopeRoleOfficial link state

4 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 · APPLICATIONadobeacrobatVulnerable target · 1 assertions

Any version (unconstrained) (>= 9.0, <= 9.1.2)Canonical identity product-ed5d44367bdcb90bad355d7e7359a851dedc6267deefc08f1c50b65634b9019cLinked exact

Scope supported

Inspect raw assertion

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 9.0; through including 9.1.2
Match ID
b9bdd6c1-0e21-40d1-9c94-c8d79f6aa217

NVD CPE · APPLICATIONadobeacrobat_readerVulnerable target · 1 assertions

Any version (unconstrained) (>= 9.0, <= 9.1.2)Canonical identity product-600b6c3e0d80d39770793f8a9da27b869cd246427b21a98d939c2f7b40e67886Linked exact

Scope supported

Inspect raw assertion

cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:*:*:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 1
Logic
OR
Version bounds
from including 9.0; through including 9.1.2
Match ID
d3d940bb-0388-471a-9691-cabe00466068

NVD CPE · APPLICATIONadobeflash_playerVulnerable target · 2 assertions

Any version (unconstrained) (>= 10.0, <= 10.0.22.87); Any version (unconstrained) (>= 9.0, <= 9.0.159.0)Canonical identity product-1f43dd2fb9df2cb64d1a717194e5325cf3f2d14dbb24ebbb35d9226a3dc1cbe7Linked exact

Scope supported

Inspect raw assertions

cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
Official link
Linked exact
Role
Vulnerable target
Configuration
1 · node/0 · match 0
Logic
OR
Version bounds
from including 9.0; through including 9.0.159.0
Match ID
452f2eac-9efb-4899-8f2f-a1ee2b796bee
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
Official link
Linked exact
Role
Vulnerable target
Configuration
1 · node/0 · match 1
Logic
OR
Version bounds
from including 10.0; through including 10.0.22.87
Match ID
5113e8ec-d47f-4bae-855e-915fa8870ae1

Affected-product evidence

Accepted scope and product mapping

3 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-70d8e9d1eb9ce5b2e6b4c9351aebc88bced6ea77611cbc8d5cdbe8115b6faed8 · product-1f43dd2fb9df2cb64d1a717194e5325cf3f2d14dbb24ebbb35d9226a3dc1cbe7

Source class: Nvd cpe vulnerable target
Assertions: 2
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

2fe28411-a90b-4324-9cd4-8db6b32a45b8ca6fa397-3c47-43d7-8c14-bb0e7e124802

Mapping establishedEvidence supported

vendor-70d8e9d1eb9ce5b2e6b4c9351aebc88bced6ea77611cbc8d5cdbe8115b6faed8 · product-600b6c3e0d80d39770793f8a9da27b869cd246427b21a98d939c2f7b40e67886

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

27e16180-62c4-406a-8d95-9184d27b436a

Mapping establishedEvidence supported

vendor-70d8e9d1eb9ce5b2e6b4c9351aebc88bced6ea77611cbc8d5cdbe8115b6faed8 · product-ed5d44367bdcb90bad355d7e7359a851dedc6267deefc08f1c50b65634b9019c

Source class: Nvd cpe vulnerable target
Assertions: 1
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Aug 27, 2026

Retained assertion IDs

8998b2bb-21e2-44a2-b658-348e32071b59

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

e209b732-82f7-474a-b9fa-e87a4cd40814

Assessments

CVSS by origin

7.8

NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

9.3

NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:M/Au:N/C:C/I:C/A:C

7.8

CVE Program sourceCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.8

CISA-ADPCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

7.8Priority eligible

CISA-ADP

CVSS 3.1 · Secondary · Independent enrichment · rank 2

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Validation: Valid match
Recomputed: 7.8
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.