CVE-2011-2140: Adobe Flash Player before 10.3.183.5 on Windows, Mac OS X, Linux, and Solaris and before 10.3.186.3 on Android

Q: How do I fix CVE-2011-2140?

flash player: upgrade to newer than 10.3.185.25; adobe air: upgrade to newer than 2.7. Exact commands for each OS are on this page.

Q: Is CVE-2011-2140 being exploited?

CVE-2011-2140 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2011-2140 affect?

CVE-2011-2140 affects flash player, adobe air. Severity is high (CVSS 10.0). Adobe Flash Player before 10.3.183.5 on Windows, Mac OS X, Linux, and Solaris and before 10.3.186.3 on Android, and Adobe AIR before 2.7.1 on Windows and Mac OS X and before 2.7.1.1961 on Android, allows attackers to execute arbitrary code

Q: How urgent is CVE-2011-2140?

Priority 70/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; On your watchlist

This week

HIGH 10.0WATCHLISTUPGRADEUPGRADE

CVE-2011-2140 is a high-severity flaw (CVSS 10.0) affecting flash player, adobe air. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Adobe Flash Player before 10.3.183.5 on Windows, Mac OS X, Linux, and Solaris and before 10.3.186.3 on Android, and Adobe AIR before 2.7.1 on Windows and Mac OS X and before 2.7.1.1961 on Android, allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2011-2135, CVE-2011-2417, and CVE-2011-2425.

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	82.3% (top 1%)
CISA exploited list	No
Weakness	CWE-119
Published	2011-08-10
Last modified	2026-06-16

Publisher (CNA): Adobe Systems Incorporated · Vendor: adobe

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2011-08-10 22:55 UTCPublished CVE record published
2026-06-16 23:30 UTCUpdated Record last modified

adobe flash player UPGRADE

Affected: <= 10.3.181.36 · 6.0.21.0 · 6.0.79 · 7.0 · 7.0.1 · 7.0.14.0 · 7.0.19.0 · 7.0.24.0

Fixed in: newer than 10.3.185.25

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy flash-player || rpm -q flash-player || flash-player --version

2. UPGRADE to newer than 10.3.185.25 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade flash-player

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade flash-player

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

adobe adobe air UPGRADE

Affected: <= 2.7 · 1.0 · 1.1 · 1.5 · 1.5.2 · 1.5.3 · 2.0.2 · 2.0.3

Fixed in: newer than 2.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy adobe-air || rpm -q adobe-air || adobe-air --version

2. UPGRADE to newer than 2.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade adobe-air

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade adobe-air

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · rust-tokio · FIXED · 1.54.1-1.fc46 · FEDORA-2026-e7fd815169 · source

sudo dnf upgrade --advisory=FEDORA-2026-e7fd815169

Fedora ELN · libopenraw · FIXED · 0.3.7-2.eln159 · FEDORA-2026-3fa115dd38 · source

sudo dnf upgrade --advisory=FEDORA-2026-3fa115dd38

RHEL 6 Supplementary · flash-plugin · FIXED · flash-plugin-10.3.183.5-1.el6

sudo dnf upgrade --advisory=RHSA-2011:1144 rpm -q flash-plugin

RHEL 6 Supplementary · acroread · FIXED · acroread-9.4.6-1.el6

sudo dnf upgrade --advisory=RHSA-2011:1434 rpm -q acroread

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14074
Exploit-DB: Adobe Flash Player - MP4 SequenceParameterSetNALUnit Buffer Overflow (Metasploit)
Exploit-DB: Adobe Flash Player - MP4 SequenceParameterSetNALUnit Remote Code Execution
Metasploit: Adobe Flash Player MP4 SequenceParameterSetNALUnit Buffer Overflow

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2011-2140?

flash player: upgrade to newer than 10.3.185.25; adobe air: upgrade to newer than 2.7. Exact commands for each OS are on this page.

Is CVE-2011-2140 being exploited?

CVE-2011-2140 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2011-2140 affect?

CVE-2011-2140 affects flash player, adobe air. Severity is high (CVSS 10.0). Adobe Flash Player before 10.3.183.5 on Windows, Mac OS X, Linux, and Solaris and before 10.3.186.3 on Android, and Adobe AIR before 2.7.1 on Windows and Mac OS X and before 2.7.1.1961 on Android, allows attackers to execute arbitrary code

How urgent is CVE-2011-2140?

Priority 70/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; On your watchlist

Software pages

Windows vulnerabilities · Android vulnerabilities · Adobe Flash vulnerabilities

Related CVEs

CVE-2018-15982 HIGH 7.8 EXPLOITED UPGRADE UPGRADE Adobe Flash Player Use-After-Free Vulnerability
CVE-2016-1019 CRITICAL 9.8 EXPLOITED UPGRADE UPGRADE Adobe Flash Player Arbitrary Code Execution Vulnerability
CVE-2016-4117 CRITICAL 9.8 EXPLOITED UPGRADE MITIGATE Adobe Flash Player Arbitrary Code Execution Vulnerability
CVE-2011-0627 HIGH 8.8 UPGRADE Adobe Flash Player before 10.3.181.14 on Windows, Mac OS X, Linux, and Solaris and before 10.3.185.21 on Andro
CVE-2020-9746 HIGH 7.0 UPGRADE UPGRADE Adobe Flash Player version 32.0.0.433 (and earlier) are affected by an exploitable NULL pointer dereference vu

References

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