CVE-2013-0643: in the CISA KEV catalogue
Adobe Flash Player Incorrect Default Permissions Vulnerability. CISA added CVE-2013-0643 to the Known Exploited Vulnerabilities catalogue on 2024-09-17 with a default due date of 2024-10-08. Known ransomware campaign use: Unknown. Forensic triage flag: No.
Adobe Flash Player contains an incorrect default permissions vulnerability in the Firefox sandbox that allows a remote attacker to execute arbitrary code via crafted SWF content. (CISA description)
- Vendor / product
- Adobe Flash Player
- CWE
- CWE-264
- CISA required action
- The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.
- EPSS
- 11%, percentile 95 (scored 2026-11-03)
EPSS puts about 11 in 100 odds (11%) on exploitation activity being observed in the next 30 days. Its score is higher than or equal to that of 95% 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-2013-0643 in the CISA KEV catalogue?
Yes. CISA added CVE-2013-0643 (Adobe Flash Player Incorrect Default Permissions Vulnerability) to the Known Exploited Vulnerabilities catalogue on 2024-09-17. CISA's default due date for it is 2024-10-08.
Is CVE-2013-0643 used in ransomware attacks?
CISA marks known ransomware campaign use as Unknown for CVE-2013-0643. That means CISA lacks confirmation, not that ransomware groups do not use it.
What should I do about CVE-2013-0643?
CISA's required action: The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.
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-2013-0643