CISA KEV source record / CVE-2013-0643

Adobe Flash Player Incorrect Default Permissions Vulnerability

Adobe / Flash Player

Known exploitation catalogNot a Secureline discoveryNot a live alert

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.

CVE identifier
CVE-2013-0643
Added to KEV
Sep 17, 2024
CISA catalog dueDate
Oct 8, 2024

The dates above are catalog fields. The addition date does not establish when the vulnerability was discovered or first exploited. Confirm which requirements apply to your organisation separately.

Publisher's required action

The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.

This wording is attributed to the CISA snapshot. Verify current vendor guidance, affected versions and your deployment before applying changes.

Keep the signals separate.

Ransomware use, as reported by CISA
Unknown
CVSS severity
Not supplied by KEV
EPSS probability
Not available

No EPSS value was supplied for this record in the current snapshot. Unknown values are not treated as zero.

“Unknown” ransomware use is an unknown source field, not proof that ransomware activity has not occurred.

Source notes

https://www.adobe.com/products/flashplayer/end-of-life-alternative.html#eol-alternative-faq ; https://nvd.nist.gov/vuln/detail/CVE-2013-0643

Source & freshness

Catalog version 2026.11.06
Source updated: Nov 6, 2026, 7:44 PM UTC
Successfully checked: Nov 7, 2026, 6:22 PM UTC

Automated source record, not an editorial advisory or an independent discovery. No affected or fixed version is inferred, and no organisation-specific risk rating is generated.