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CISA KEV · ACTIVELY EXPLOITED
HIGH severity

CVE-2013-0648 — Red Hat

HIGH

CVE-2013-0648 is a high-severity (CVSS 8.8) remote code execution vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2024-09-17) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.

Unspecified vulnerability in the ExternalInterface ActionScript functionality 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…

Published
Updated
Affected
8 products
Patched
See advisory
Exploits
2 known
Exploitation data as of Oct 20, 2026 · OSV.dev, NVD, CISA KEV, FIRST.org (EPSS)

Exploitation Status

Actively exploited in the wild

  • Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2024-09-17. Federal agencies were required to remediate by 2024-10-08.
  • A successful exploit gives an attacker total control of the affected component, not partial access.

Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2013-0648.

EPSS Exploitation Probability

via FIRST.org ↗
11.1%probability of exploitation in next 30 days
Moderate Risk0.00%
Lower risk than most CVEs96th percentile — riskier than 96% of all scored CVEsHighest risk
0.00%25.4%50.9%76.3%54.7%11.1%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2013-0648 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 394,803 CVEs with a current EPSS score, this one falls in the 10–50% band (highlighted). Counts from FIRST.org, log-scaled.

Description

Unspecified vulnerability in the ExternalInterface ActionScript functionality 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, allows remote attackers to execute arbitrary code via crafted SWF content, as exploited in the wild in February 2013.

Affected Products

8 products · 14 configurations
Application
flash playeradobe
≥ 11.0 && < 11.2.202.273
range
OS
opensuseopensuse
2 versions
11.412.1
OS
enterprise linux desktopredhat
1 version
6.0
OS
enterprise linux eusredhat
2 versions
5.96.4
OS
enterprise linux serverredhat
1 version
6.0
OS
enterprise linux server ausredhat
2 versions
5.96.4
Exploits & PoCs
2

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2013-0648 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatCritical
ProductFixed inAdvisory
Supplementary for Red Hat Enterprise Linux 5flash-plugin-0:11.2.202.273-1.el5RHSA-2013:0574

Frequently Asked Questions

Unspecified vulnerability in the ExternalInterface ActionScript functionality 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, allows remote attackers to execute arbitrary code via crafted SWF content, as exploited in the wild in February 2013.
O3 Security · Impact-Aware SCA

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Actively Exploited: CVE-2013-0648: Red Hat RCE (High 8.8)