CVE-2012-5054

From Exploited flaws, HARD’s guide to the flaws being used in attacks · Checked
This article is about a flaw in Adobe Flash Player. For every flaw being used in attacks, see Exploited flaws; for Adobe’s, see Adobe flaws being used in attacks.

CVE-2012-5054 is a security flaw in Adobe Flash Player, Adobe’s discontinued browser plug-in for animation and video. Attackers can run their own code on Adobe Flash Player. The US Cybersecurity and Infrastructure Security Agency (CISA) added it to its catalog of flaws known to be used in attacks on 8 Jun 2022.[1]

Adobe Flash Player is in things households have, such as phones, computers, browsers and everyday apps, so the fix matters at home as much as at work.

Description

CISA calls it an integer overflow in Adobe Flash Player. In its words: “Adobe Flash Player contains an integer overflow vulnerability that allows remote attackers to execute code via malformed arguments.”[1]

The CVE record adds: “Integer overflow in the copyRawDataTo method in the Matrix3D class in Adobe Flash Player before 11.4.402.265 allows remote attackers to execute arbitrary code via malformed arguments.”[2]

The underlying weakness is CWE-189, in MITRE’s list of common software weaknesses.

It scores 8.8 out of 10 on the Common Vulnerability Scoring System, which rates it high, scored by NVD using CVSS 3.1.[2]

Affected versions

NVD’s record doesn’t list version ranges for it. CISA names the product as Adobe Flash Player.

Every device with Adobe Flash Player needs the update.

Exploitation

CISA added it to its catalog of known exploited vulnerabilities on 8 Jun 2022, 3,544 days after it was made public. CISA lists a flaw only when it has reliable evidence of it being exploited, and gave US federal agencies until 22 Jun 2022 to fix it.[1]

FIRST’s Exploit Prediction Scoring System, which estimates how likely a flaw is to be used in attacks in the next 30 days from what it sees across the internet, puts it at 21%. That’s in the top 3% of the flaws it scores.[3]

CISA assesses it as not automatable: each attack takes some work.

CISA doesn’t say who was attacked, or how.

Fix

CISA’s required action: “The impacted product is end-of-life and should be disconnected if still in use.”[1]

  1. Update Adobe Flash Player now.Install the latest update from Adobe on every device that has it, and restart when asked. Then turn on automatic updates, so the next fix arrives on its own.
  2. If there’s no update, stop using it.CISA’s advice when a flaw being used in attacks has no fix is to stop using the product until it does.

Timeline

DateEvent
The flaw is made public in the National Vulnerability Database, with a severity score of 8.8.[2]
CISA adds it to its catalog of flaws known to be used in attacks.[1]
CISA’s deadline for US government agencies to fix it.[1]
FIRST puts the odds of it being used in attacks in the next 30 days at 21%.[3]

See also

Other Adobe Flash Player flaws

Other Adobe flaws

  • CVE-2026-48356, Adobe Commerce and Magento: unrestricted upload of file with dangerous type ·
  • CVE-2026-71362, Adobe Commerce and Magento: incorrect authorization ·
  • CVE-2026-75650, Adobe Commerce and Magento: improper neutralization of special elements used in a template engine ·
  • CVE-2026-48282, Adobe ColdFusion: path traversal ·
  • CVE-2009-3459, Adobe Acrobat and Reader: heap-based buffer overflow ·

Similar flaws

Added the same day

  • CVE-2019-7195, QNAP Photo Station: path traversal ·
  • CVE-2019-7194, QNAP Photo Station: path traversal ·
  • CVE-2019-7193, QNAP QTS: improper input validation ·
  • CVE-2019-7192, QNAP Photo Station: improper access control ·
  • CVE-2019-5825, Chrome and other Chromium browsers: out-of-bounds write ·

Every Adobe flaw on CISA’s list · Everything added in June 2022

References

  1. ^ Cybersecurity and Infrastructure Security Agency. “Adobe Flash Player Integer Overflow Vulnerability”. Known Exploited Vulnerabilities Catalog, added 8 Jun 2022.
  2. ^ National Institute of Standards and Technology. “CVE-2012-5054 Detail”. National Vulnerability Database, published 24 Sep 2012.
  3. ^ FIRST. “Exploit Prediction Scoring System”. EPSS 0.212, percentile 97.6, 31 Oct 2026.
  4. CVE Program. “CVE-2012-5054”. The official CVE record.

This article is built from CISA’s catalog (version 2026.10.30), NVD’s record and FIRST’s scores, kept in HARD’s database and checked every morning. The plain English is HARD’s.