CVE-2009-1862: in the CISA KEV catalogue
Adobe Acrobat and Reader, Flash Player Unspecified Vulnerability. CISA added CVE-2009-1862 to the Known Exploited Vulnerabilities catalogue on 2022-06-08 with a default due date of 2022-06-22. Known ransomware campaign use: Unknown. Forensic triage flag: No.
Adobe Acrobat and Reader and Adobe Flash Player allows remote attackers to execute code or cause denial-of-service (DoS). (CISA description)
- Vendor / product
- Adobe Acrobat and Reader, Flash Player
- CWE
- CWE-94
- CISA required action
- For Adobe Acrobat and Reader, apply updates per vendor instructions. For Adobe Flash Player, the impacted product is end-of-life and should be disconnected if still in use.
- EPSS
- 21%, percentile 97 (scored 2026-11-03)
EPSS puts about 21 in 100 odds (21%) on exploitation activity being observed in the next 30 days. Its score is higher than or equal to that of 97% of scored CVEs. This is a model estimate about exploitation anywhere, not about your environment.
Vendor and reference links (from CISA)
Your own deadline under CISA BOD 26-04 depends on exposure, automatability and technical impact: work it out with the BOD 26-04 calculator.
Frequently asked questions
Is CVE-2009-1862 in the CISA KEV catalogue?
Yes. CISA added CVE-2009-1862 (Adobe Acrobat and Reader, Flash Player Unspecified Vulnerability) to the Known Exploited Vulnerabilities catalogue on 2022-06-08. CISA's default due date for it is 2022-06-22.
Is CVE-2009-1862 used in ransomware attacks?
CISA marks known ransomware campaign use as Unknown for CVE-2009-1862. That means CISA lacks confirmation, not that ransomware groups do not use it.
What should I do about CVE-2009-1862?
CISA's required action: For Adobe Acrobat and Reader, apply updates per vendor instructions. For Adobe Flash Player, the impacted product is end-of-life and should be disconnected if still in use.
Sources
- CISA, Known Exploited Vulnerabilities Catalog (accessed 2026-11-03)
- FIRST, Exploit Prediction Scoring System (EPSS) (EPSS by FIRST; scores generated by Empirical Security)
- NVD record for CVE-2009-1862