CVE-2011-2456

Buffer overflow in Adobe Flash Player before 10.3.183.11 and 11.x before 11.1.102.55 on Windows,...

10.0 High

Buffer overflow in Adobe Flash Player before 10.3.183.11 and 11.x before 11.1.102.55 on Windows, Mac OS X, Linux, and Solaris and before 11.1.102.59 on Android, and Adobe AIR before 3.1.0.4880, allows attackers to execute arbitrary code via unspecified vectors.

Exploit likelihood

8.96%Up 4.3 points since Feb 4, 2022

What each source reports

NVD Score used 10.0

Record: CVE-2011-2456
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-2456
Updated: 2026-11-02

EUVDEUVD-2011-2445 No score

Record: EUVD-2011-2445
Updated: 2026-11-03

GitHub AdvisoriesGHSA-v4r8-cqvm-3hjq No score

Buffer overflow in Adobe Flash Player before 10.3.183.11 and 11.x before 11.1.102.55 on Windows,...

Record: GHSA-v4r8-cqvm-3hjq
Weakness: CWE-119
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`flash-plugin` Red Hat:rhel_extras:5::client From an advisory covering 11 CVEs	before 0:10.3.183.11-1.el5	0:10.3.183.11-1.el5
`flash-plugin` Red Hat:rhel_extras:5::server From an advisory covering 11 CVEs	before 0:10.3.183.11-1.el5	0:10.3.183.11-1.el5
`flash-plugin` Red Hat:rhel_extras:6 From an advisory covering 11 CVEs	before 0:10.3.183.11-1.el6	0:10.3.183.11-1.el6

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-2456 is a high vulnerability (CVSS 10.0) in Adobe Air, published November 11, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 8.96%, the 95th percentile. No source names a fixed version.

References

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