Skip to content
Fencer Intel
critical 9.3

CVE-2011-2426 json

Stack-based buffer overflow in the ActionScript Virtual Machine (AVM) component in Adobe Flash Player before 10.3.183.10 on Windows, Mac OS…

published 2011-09-22 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2415

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.2%
EPSS 8.2% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

Stack-based buffer overflow in the ActionScript Virtual Machine (AVM) component in Adobe Flash Player before 10.3.183.10 on Windows, Mac OS X, Linux, and Solaris, and before 10.3.186.7 on Android, allows remote attackers to execute arbitrary code via unspecified vectors.

Patch / fix

  • acroread RHEL 4 EXTRAS 9.4.6-1.el4
  • acroread RHEL 5 EXTRAS 9.4.6-1.el5
  • acroread RHEL 6 EXTRAS 9.4.6-1.el6
  • acroread-plugin RHEL 4 EXTRAS 9.4.6-1.el4
  • acroread-plugin RHEL 5 EXTRAS 9.4.6-1.el5
  • acroread-plugin RHEL 6 EXTRAS 9.4.6-1.el6
  • flash-plugin RHEL 5 EXTRAS 10.3.183.10-1.el5
  • flash-plugin RHEL 6 EXTRAS 10.3.183.10-1.el6

red hat advisories RHSA-2011:1434RHSA-2011:1333

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-2426 updated cvss 6.8

flash-plugin: critical flaws fixed in APSB11-26

  • Red Hat Desktop version 4 Extras acroread 9.4.6-1.el4, acroread-plugin 9.4.6-1.el4 Red Hat Enterprise Linux AS version 4 Extras acroread 9.4.6-1.el4, acroread-plugin 9.4.6-1.el4 Red Hat Enterprise Linux Desktop Supplementary (v. 5) acroread 9.4.6-1.el5, acroread-plugin 9.4.6-1.el5, flash-plugin 10.3.183.10-1.el5 Red Hat Enterprise Linux Desktop Supplementary (v. 6) acroread 9.4.6-1.el6, acroread-plugin 9.4.6-1.el6, flash-plugin 10.3.183.10-1.el6 Red Hat Enterprise Linux ES version 4 Extras acroread 9.4.6-1.el4, acroread-plugin 9.4.6-1.el4 Red Hat Enterprise Linux Server Supplementary (v. 5) acroread 9.4.6-1.el5, acroread-plugin 9.4.6-1.el5, flash-plugin 10.3.183.10-1.el5
    +3 more products
    Red Hat Enterprise Linux Server Supplementary (v. 6) acroread 9.4.6-1.el6, acroread-plugin 9.4.6-1.el6, flash-plugin 10.3.183.10-1.el6 Red Hat Enterprise Linux Workstation Supplementary (v. 6) acroread 9.4.6-1.el6, acroread-plugin 9.4.6-1.el6, flash-plugin 10.3.183.10-1.el6 Red Hat Enterprise Linux WS version 4 Extras acroread 9.4.6-1.el4, acroread-plugin 9.4.6-1.el4
    fixed: vendor fix RHSA-2011:1434

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

8.20% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.