Cyber Threat Intelligence
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HIGH · CVSS 8.8 CISA Known Exploited Vulnerability

CVE-2013-0643

Adobe Flash Player Incorrect Default Permissions Vulnerability

Adobe Flash Player

The Firefox sandbox in Adobe Flash Player before 10.3.183.67 and 11.x before 11.6.602.171 on Windows and Mac OS X, and before 10.3.183.67 and 11.x before 11.2.202.273 on Linux, does not properly restrict privileges, which makes it easier for remote attackers to execute arbitrary code via crafted SWF content, as exploited in the wild in February 2013.

CVSS
8.8
HIGH
EPSS
10.5%
30-day exploitation
Ransomware groups
0
recorded exploiting
Published
27 Feb 2013
CWE-269

Exploitation status

CISA Known Exploited Vulnerabilities

Listed by CISA on 17 September 2024. US federal agencies were required to remediate it by 8 October 2024.

EPSS — exploitation probability

FIRST puts the probability of exploitation activity in the next 30 days at 10.5%, which is higher than 95.7% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.

CVSS vector

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

Frequently asked questions

Is CVE-2013-0643 being exploited by ransomware groups?

No ransomware group in this database is currently recorded as exploiting CVE-2013-0643.

What does CVE-2013-0643 affect?

CVE-2013-0643 affects Adobe Flash Player. The Firefox sandbox in Adobe Flash Player before 10.3.183.67 and 11.x before 11.6.602.171 on Windows and Mac OS X, and before 10.3.183.67 and 11.x before 11.2.202.273 on Linux, does not properly restrict privileges, which makes it easier for remote attackers to execute arbitrary code via crafted SWF content, as exploited in the wild in February 2013.

How severe is CVE-2013-0643?

CVE-2013-0643 is rated HIGH with a CVSS base score of 8.8. EPSS puts the probability of exploitation in the next 30 days at 10.5%, higher than 95.7% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 8 October 2024.

How should organisations respond to CVE-2013-0643?

Apply the vendor patch for Adobe Flash Player as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.