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Flash PlayerApplication · Adobe

CVE-2012-5266

HIGH · 10.0 CVSS v2.0 Published 2012-10-09
Fix available
A fix is available. Upgrade to after 11.1.115.17 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Buffer overflow in Adobe Flash Player before 10.3.183.29 and 11.x before 11.4.402.287 on Windows and Mac OS X, before 10.3.183.29 and 11.x before 11.2.202.243 on Linux, before 11.1.111.19 on Android 2.x and 3.x, and before 11.1.115.20 on Android 4.x; Adobe AIR before 3.4.0.2710; and Adobe AIR SDK before 3.4.0.2710 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than other Flash Player buffer overflow CVEs listed in APSB12-22.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Buffer overflow vulnerability in Adobe Flash Player and Adobe AIR allowing arbitrary code execution. Affected versions span multiple platforms (Windows, Mac OS X, Linux, Android) and the Adobe AIR SDK. The vulnerability is distinct from other buffer overflows in the same APSB12-22 security bulletin.

MitigationUpdate Adobe Flash Player to versions 10.3.183.29+/11.4.402.287+/11.2.202.243+ and Adobe AIR to 3.4.0.2710+ across all affected platforms to remediate this critical vulnerability.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Flash PlayerApplication
Affected:<= 10.3.183.25= 10.1.85.3= 10.1.102.64= 10.2.152.26= 10.2.152.32= 10.2.153.1= 10.2.159.1= 10.3.181.14= 10.3.181.16= 10.3.181.22= 10.3.181.26= 10.3.181.34
Flash Player For AndroidApplication
Affected:<= 11.1.111.16= 10.1.106.17= 10.2.157.51= 10.3.186.7= 11.0.1.153= 11.1.102.59= 11.1.111.5= 11.1.111.7= 11.1.111.8= 11.1.111.9= 11.1.111.10<= 11.1.115.17
Adobe AirApplication
Affected:<= 3.4.0.2540= 1.0= 1.0.1= 1.0.8.4990= 1.0.4990= 1.1= 1.1.0.5790= 1.5= 1.5.0.7220= 1.5.1= 1.5.1.8210= 1.5.2
Adobe Air SdkApplication
Affected:<= 3.4.0.2540

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:N/C:C/I:C/A:C

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Adobe Flash Player version on Windows or Mac browsers
    In Internet Explorer/Chrome, go to https://helpx.adobe.com/flash-player.html or type 'about:plugin' in address bar. In Firefox, go to Add-ons > Plugins. On Mac, also check System Preferences > Flash Player.
    Affected if The displayed version matches any of these: 10.3.183.25 or lower; 10.1.85.3; 10.1.102.64; 10.2.152.26; 10.2.152.32; 10.2.153.1; 10.2.159.1; 10.3.181.14; 10.3.181.16; 10.3.181.22; 10.3.181.26; 10.3.181.34
  2. Identify Adobe Flash Player version on Linux
    Open terminal and run: rpm -q flash-plugin or dpkg -l | grep flashplayer, or check /usr/lib/flash-plugin/ directory for version files.
    Affected if The displayed version matches any of the vulnerable Flash Player versions listed in the affected ranges.
  3. Identify Adobe Flash Player for Android version
    Go to Settings > Apps > Adobe Flash Player and view the version information, or check the APK file properties if installed via sideload.
    Affected if The version is 11.1.111.16 or lower; equals 10.1.106.17; 10.2.157.51; 10.3.186.7; 11.0.1.153; 11.1.102.59; 11.1.111.5; 11.1.111.7; 11.1.111.8; 11.1.111.9; 11.1.111.10; or is 11.1.115.17 or lower.
  4. Identify Adobe AIR version on desktop
    On Windows, check Add/Remove Programs or the AIR version displayed in the application. On Mac, check /Library/Frameworks/Adobe AIR.framework or the application's info. Run 'airappinstaller -version' in command line if available.
    Affected if The version is 3.4.0.2540 or lower; or equals 1.0, 1.0.1, 1.0.8.4990, 1.0.4990, 1.1, 1.1.0.5790, 1.5, 1.5.0.7220, 1.5.1, or 1.5.1.8210.
  5. Identify Adobe AIR SDK version
    Check the AIR SDK version in the SDK's readme or release notes file, or run 'adl -version' from the SDK bin directory if installed.
    Affected if The AIR SDK version is 3.4.0.2540 or lower.

You are affected if any installed Adobe Flash Player, Adobe AIR, or Adobe AIR SDK version matches one of the specific vulnerable versions or falls within the vulnerable version ranges listed for this CVE.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to a release after 11.1.115.17
Interim mitigation

Update Adobe Flash Player to versions 10.3.183.29+/11.4.402.287+/11.2.202.243+ and Adobe AIR to 3.4.0.2710+ across all affected platforms to remediate this critical vulnerability.

Recommended fix High confidence

Flash Player 10.3.183.29+/11.4.402.287+ (Win/Mac), 11.2.202.243+ (Linux), 11.1.111.19+ (Android 2.x/3.x), 11.1.115.20+ (Android 4.x); Adobe AIR 3.4.0.2710+; Adobe AIR SDK 3.4.0.2710+

  1. 1. Identify the affected Adobe product (Flash Player, Flash Player for Android, Adobe AIR, or Adobe AIR SDK) currently installed.
  2. 2. Determine the operating system and version (Windows, Mac OS X, Linux, or Android) to select the correct fixed version.
  3. 3. For Flash Player on Windows or Mac OS X: Upgrade to version 10.3.183.29 or 11.4.402.287 (or later).
  4. 4. For Flash Player on Linux: Upgrade to version 10.3.183.29 or 11.2.202.243 (or later).
  5. 5. For Flash Player on Android 2.x/3.x: Upgrade to version 11.1.111.19 or later.
  6. 6. For Flash Player on Android 4.x: Upgrade to version 11.1.115.20 or later.
  7. 7. For Adobe AIR: Upgrade to version 3.4.0.2710 or later.
  8. 8. For Adobe AIR SDK: Upgrade to version 3.4.0.2710 or later.
Caveat Ensure compatibility with web content and applications that may rely on specific Flash Player or AIR versions; some older content may require testing after upgrade

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Flash Player Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2012-5266 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data