How severe is CVE-2009-1862?

CVE-2009-1862 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2009-1862 being actively exploited?

Yes. CVE-2009-1862 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-06-08, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2009-1862?

CVE-2009-1862 primarily affects Adobe Acrobat. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1862?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2009-1862 have an EU (EUVD) identifier?

Yes. CVE-2009-1862 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2009-1857. It is also flagged as exploited in the EUVD (since 2022-06-08).

When was CVE-2009-1862 published?

CVE-2009-1862 was published on 2009-07-23 and last updated on 2026-06-16.

CVE-2009-1862

CVE-2009-1862 is a high-severity vulnerability in Adobe Acrobat with a CVSS 3.x base score of 7.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-06-08). The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 9.3
EPSS exploit prediction: 25% (98th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-06-08)
EU (EUVD) id: EUVD-2009-1857
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-06-08)
Weakness: CWE-787
Affected product: Adobe Acrobat
Published: 2009-07-23
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is 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 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.
How severe is CVE-2009-1862?: CVE-2009-1862 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2009-1862 being actively exploited?: Yes. CVE-2009-1862 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-06-08, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2009-1862?: CVE-2009-1862 primarily affects Adobe Acrobat. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1862?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2009-1862 have an EU (EUVD) identifier?: Yes. CVE-2009-1862 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2009-1857. It is also flagged as exploited in the EUVD (since 2022-06-08).
When was CVE-2009-1862 published?: CVE-2009-1862 was published on 2009-07-23 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:adobe:acrobat:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:*:*:*
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*

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