CVE-2011-0609

CRITICALNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-06-08), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 67%CVSS: 7.8Exploit: cisa kev · ssvc active · Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

A fix is available — apply it.

Unspecified vulnerability in Adobe Flash Player 10.2.154.13 and earlier on Windows, Mac OS X, Linux, and Solaris; 10.1.106.16 and earlier on Android; Adobe AIR 2.5.1 and earlier; and Authplay.dll (aka AuthPlayLib.bundle) in Adobe Reader and Acrobat 9.x through 9.4.2 and 10.x through 10.0.1 on Windows and Mac OS X, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via crafted Flash content, as demonstrated by a .swf file embedded in an Excel spreadsheet, and as exploited in the wild in March 2011.

CVSS v3
7.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
67%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

March 15, 2011

Last Modified

April 21, 2026

Advisory Details (7)

Auto-updated May 19, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

Adobe - Security Advisories: APSA11-01 - Security Advisory for Adobe Flash Player, Adobe Reader and Acrobat

http://www.adobe.com/support/security/advisories/apsa11-01.html
generic🔴 Active Exploitation

Adobe Flash Player AVM Bytecode Verification - CXSecurity.com

http://securityreason.com/securityalert/8152
generic

About Secunia Research | Flexera

http://secunia.com/advisories/43856
generic

About Secunia Research | Flexera

http://secunia.com/advisories/43772
generic

About Secunia Research | Flexera

http://secunia.com/advisories/43757
generic

About Secunia Research | Flexera

http://secunia.com/advisories/43751
generic

Chrome Releases: Stable and Beta Channel Updates

http://googlechromereleases.blogspot.com/2011/03/stable-and-beta-channel-updates_15.html

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatflash-plugin-0:10.2.153.1-1.el52011-03-22redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 101× in last 7d / 433× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 1,273 total refreshes for this CVE.

  1. 2026-08-28 00:20 UTCVendor advisory
  2. 2026-08-28 00:20 UTCGHSA enrichment
  3. 2026-08-27 20:38 UTCVendor advisory
  4. 2026-08-27 20:38 UTCGHSA enrichment
  5. 2026-08-27 17:22 UTCCISA KEV update
  6. 2026-08-27 17:01 UTCEG score recompute
  7. 2026-08-27 17:01 UTCVendor advisory
  8. 2026-08-27 17:01 UTCGHSA enrichment
  9. 2026-08-27 13:21 UTCVendor advisory
  10. 2026-08-27 13:21 UTCGHSA enrichment
  11. 2026-08-27 09:43 UTCVendor advisory
  12. 2026-08-27 09:43 UTCGHSA enrichment
  13. 2026-08-27 06:05 UTCVendor advisory
  14. 2026-08-27 06:05 UTCGHSA enrichment
  15. 2026-08-27 02:24 UTCVendor advisory
  16. 2026-08-27 02:24 UTCGHSA enrichment
  17. 2026-08-26 22:47 UTCVendor advisory
  18. 2026-08-26 22:47 UTCGHSA enrichment
  19. 2026-08-26 19:08 UTCVendor advisory
  20. 2026-08-26 19:08 UTCGHSA enrichment
  21. 2026-08-26 17:41 UTCCISA KEV update
  22. 2026-08-26 15:31 UTCEG score recompute
  23. 2026-08-26 15:31 UTCVendor advisory
  24. 2026-08-26 15:31 UTCGHSA enrichment
  25. 2026-08-26 11:53 UTCVendor advisory
Show 75 more
  1. 2026-08-26 11:53 UTCGHSA enrichment
  2. 2026-08-26 08:16 UTCVendor advisory
  3. 2026-08-26 08:16 UTCGHSA enrichment
  4. 2026-08-26 04:38 UTCVendor advisory
  5. 2026-08-26 04:38 UTCGHSA enrichment
  6. 2026-08-26 00:59 UTCVendor advisory
  7. 2026-08-26 00:59 UTCGHSA enrichment
  8. 2026-08-25 21:21 UTCVendor advisory
  9. 2026-08-25 21:21 UTCGHSA enrichment
  10. 2026-08-25 17:44 UTCVendor advisory
  11. 2026-08-25 17:44 UTCGHSA enrichment
  12. 2026-08-25 14:06 UTCVendor advisory
  13. 2026-08-25 14:05 UTCGHSA enrichment
  14. 2026-08-25 10:26 UTCVendor advisory
  15. 2026-08-25 10:26 UTCGHSA enrichment
  16. 2026-08-25 06:49 UTCVendor advisory
  17. 2026-08-25 06:49 UTCGHSA enrichment
  18. 2026-08-25 03:11 UTCVendor advisory
  19. 2026-08-25 03:11 UTCGHSA enrichment
  20. 2026-08-24 23:34 UTCVendor advisory
  21. 2026-08-24 23:34 UTCGHSA enrichment
  22. 2026-08-24 19:56 UTCVendor advisory
  23. 2026-08-24 19:56 UTCGHSA enrichment
  24. 2026-08-24 18:52 UTCCISA KEV update
  25. 2026-08-24 16:18 UTCEG score recompute
  26. 2026-08-24 16:18 UTCVendor advisory
  27. 2026-08-24 16:18 UTCGHSA enrichment
  28. 2026-08-24 12:38 UTCVendor advisory
  29. 2026-08-24 12:38 UTCGHSA enrichment
  30. 2026-08-24 09:00 UTCEG score recompute
  31. 2026-08-24 09:00 UTCVendor advisory
  32. 2026-08-24 09:00 UTCGHSA enrichment
  33. 2026-08-24 05:22 UTCVendor advisory
  34. 2026-08-24 05:22 UTCGHSA enrichment
  35. 2026-08-24 01:44 UTCVendor advisory
  36. 2026-08-24 01:44 UTCGHSA enrichment
  37. 2026-08-23 22:05 UTCVendor advisory
  38. 2026-08-23 22:04 UTCGHSA enrichment
  39. 2026-08-23 18:24 UTCVendor advisory
  40. 2026-08-23 18:24 UTCGHSA enrichment
  41. 2026-08-23 14:46 UTCVendor advisory
  42. 2026-08-23 14:46 UTCGHSA enrichment
  43. 2026-08-23 11:08 UTCVendor advisory
  44. 2026-08-23 11:08 UTCGHSA enrichment
  45. 2026-08-23 07:30 UTCVendor advisory
  46. 2026-08-23 07:30 UTCGHSA enrichment
  47. 2026-08-23 03:52 UTCVendor advisory
  48. 2026-08-23 03:52 UTCGHSA enrichment
  49. 2026-08-23 00:15 UTCVendor advisory
  50. 2026-08-23 00:15 UTCGHSA enrichment
  51. 2026-08-22 20:37 UTCVendor advisory
  52. 2026-08-22 20:37 UTCGHSA enrichment
  53. 2026-08-22 16:59 UTCVendor advisory
  54. 2026-08-22 16:59 UTCGHSA enrichment
  55. 2026-08-22 13:21 UTCVendor advisory
  56. 2026-08-22 13:21 UTCGHSA enrichment
  57. 2026-08-22 09:44 UTCVendor advisory
  58. 2026-08-22 09:44 UTCGHSA enrichment
  59. 2026-08-22 06:06 UTCVendor advisory
  60. 2026-08-22 06:06 UTCGHSA enrichment
  61. 2026-08-22 02:28 UTCEG score recompute
  62. 2026-08-22 02:28 UTCVendor advisory
  63. 2026-08-22 02:28 UTCGHSA enrichment
  64. 2026-08-21 22:50 UTCVendor advisory
  65. 2026-08-21 22:50 UTCGHSA enrichment
  66. 2026-08-21 19:12 UTCVendor advisory
  67. 2026-08-21 19:12 UTCGHSA enrichment
  68. 2026-08-21 16:49 UTCCISA KEV update
  69. 2026-08-21 15:34 UTCVendor advisory
  70. 2026-08-21 15:34 UTCGHSA enrichment
  71. 2026-08-21 11:56 UTCVendor advisory
  72. 2026-08-21 11:56 UTCGHSA enrichment
  73. 2026-08-21 08:18 UTCVendor advisory
  74. 2026-08-21 08:18 UTCGHSA enrichment
  75. 2026-08-21 04:40 UTCVendor advisory

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-17027✓ verified
    First seen Mar 23, 2011

    Adobe Flash Player - AVM Bytecode Verification (Metasploit)

    Open source ↗
  • Metasploitexploit/windows/browser/adobe_flashplayer_avm✓ verified
    First seen Mar 15, 2011

    Adobe Flash Player AVM Bytecode Verification Vulnerability

    Open source ↗

Frequently asked(6)

What is CVE-2011-0609?
CVE-2011-0609 is a critical vulnerability published on March 15, 2011. Unspecified vulnerability in Adobe Flash Player 10.2.154.13 and earlier on Windows, Mac OS X, Linux, and Solaris; 10.1.106.16 and earlier on Android; Adobe AIR 2.5.1 and earlier; and Authplay.dll (aka AuthPlayLib.bundle) in Adobe Reader and Acrobat 9.x through 9.4.2 and 10.x through 10.0.1 on…
When was CVE-2011-0609 disclosed?
CVE-2011-0609 was first published in the National Vulnerability Database on March 15, 2011, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-0609 actively exploited?
Yes. CISA added CVE-2011-0609 to the Known Exploited Vulnerabilities catalog on June 8, 2022, affecting Adobe Flash Player. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2011-0609?
CVE-2011-0609 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2011-0609?
CVE-2011-0609 affects Adobe Flash Player. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2011-0609?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-0609, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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