CVE-2011-0611

CRITICALNVD 8.89.0
EchelonGraph scoreHIGH confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. The 9.0 is the floor for confirmed exploitation, not an impact rating: this CVE's impact severity (EG Severity) is CVSS 8.8 HIGH under GitHub Security Advisory CVSS. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: CISA Known Exploited Vulnerabilities catalog, EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this weekExploited in the wild

Also known asEUVD-2011-0629 (ENISA EUVD) · GHSA-xhq8-8cqj-q337 (GitHub Security Advisories)Source: ENISA EUVD

9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low or medium mission impact
CISA-KEV: ExploitedEPSS PROB: 99%CVSS: 8.8Exploit: Metasploit · Exploit-DB (verified)Exposed services: Not assessed

A fix is available — apply it.

Adobe Flash Player before 10.2.154.27 on Windows, Mac OS X, Linux, and Solaris and 10.2.156.12 and earlier on Android; Adobe AIR before 2.6.19140; and Authplay.dll (aka AuthPlayLib.bundle) in Adobe Reader 9.x before 9.4.4 and 10.x through 10.0.1 on Windows, Adobe Reader 9.x before 9.4.4 and 10.x before 10.0.3 on Mac OS X, and Adobe Acrobat 9.x before 9.4.4 and 10.x before 10.0.3 on Windows and Mac OS X allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via crafted Flash content; as demonstrated by a Microsoft Office document with an embedded .swf file that has a size inconsistency in a "group of included constants," object type confusion, ActionScript that adds custom functions to prototypes, and Date objects; and as exploited in the wild in April 2011.

CVSS v3
8.8
EG Score
9.0CRITICALhigh confidence
EG Risk
80
EG Risk 80/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation100% × 40%
Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Attend at medium and Act at high mission impact.
Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.
EPSS PROB
99%
EPSS %ILE
99th
KEV
⚠ Exploited

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.0): severity, escalated by confirmed exploitation. This CVE's 9.0 is the CISA KEV floor for confirmed exploitation, not an impact rating: its impact severity (EG Severity) is CVSS 8.8 HIGH.

EG Severity
8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
99% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-25). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
CISA KEV and EG-KEV Tier 1 (exploited in the wild)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Attend at medium mission impactTrack at low, Attend at medium and Act at high mission impact.CISA BOD 26-04: 3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Attend at medium and Act at high mission impact.

A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.

In CISA KEV yes (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

CISA required action“The impacted product is end-of-life and should be disconnected if still in use.”

Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://nvd.nist.gov/vuln/detail/CVE-2011-0611

Published

April 13, 2011

Last Modified

April 21, 2026

Advisory Details (9)

Auto-updated Oct 19, 2026
⚠️ Actively exploited (CISA KEV, CISA Vulnrichment). Patch available.
Web page

Adobe Flash Player 10.2.153.1 SWF Memory Corruption Vulnerability - CXSecurity.com

http://securityreason.com/securityalert/8204
Web page

contagio: Apr. 8 CVE-2011-0611 Flash Player Zero day - SWF in DOC/ XLS - Disentangling Industrial Policy..

http://contagiodump.blogspot.com/2011/04/apr-8-cve-2011-0611-flash-player-zero.html
Web page

BugiX - Security Research: CVE-2011-0611 Adobe Flash Zero Day embeded in DOC

http://bugix-security.blogspot.com/2011/04/cve-2011-0611-adobe-flash-zero-day.html
Web page

Secunia Research & Vulnerability Insights | Flexera

http://secunia.com/advisories/44149
Web page

Secunia Research & Vulnerability Insights | Flexera

http://secunia.com/advisories/44141
Web page

Secunia Research & Vulnerability Insights | Flexera

http://secunia.com/advisories/44119

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatflash-plugin-0:10.2.159.1-1.el52011-04-18redhat

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.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

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 25× in last 7d / 257× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 1,829 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 1,729 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-25 18:29 UTCEG score recompute
  2. 2026-10-25 18:29 UTCVendor advisory
  3. 2026-10-25 18:29 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  4. 2026-10-25 16:26 UTCEPSS rescoreEPSS 99% · 99th percentile
  5. 2026-10-24 17:38 UTCEG score recompute
  6. 2026-10-24 17:38 UTCVendor advisory
  7. 2026-10-24 17:38 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  8. 2026-10-23 16:49 UTCEG score recompute
  9. 2026-10-23 16:49 UTCVendor advisory
  10. 2026-10-23 16:49 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  11. 2026-10-22 15:59 UTCEG score recompute
  12. 2026-10-22 15:59 UTCVendor advisory
  13. 2026-10-22 15:59 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  14. 2026-10-21 16:26 UTCEPSS rescoreEPSS 99% · 99th percentile
  15. 2026-10-21 15:08 UTCEG score recompute
  16. 2026-10-21 15:08 UTCVendor advisory
  17. 2026-10-21 15:08 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  18. 2026-10-20 16:26 UTCEPSS rescoreEPSS 99% · 99th percentile
  19. 2026-10-20 14:18 UTCEG score recompute
  20. 2026-10-20 14:18 UTCVendor advisory
  21. 2026-10-20 14:18 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  22. 2026-10-19 16:25 UTCEPSS rescoreEPSS 99% · 99th percentile
  23. 2026-10-19 13:28 UTCEG score recompute
  24. 2026-10-19 13:28 UTCVendor advisory
  25. 2026-10-19 13:28 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
Show 75 more
  1. 2026-10-18 12:37 UTCVendor advisory
  2. 2026-10-18 12:37 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  3. 2026-10-18 11:34 UTCEG score recompute
  4. 2026-10-17 11:45 UTCEG score recompute
  5. 2026-10-17 11:45 UTCVendor advisory
  6. 2026-10-17 11:45 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  7. 2026-10-16 10:56 UTCEG score recompute
  8. 2026-10-16 10:56 UTCVendor advisory
  9. 2026-10-16 10:56 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  10. 2026-10-15 10:04 UTCEG score recompute
  11. 2026-10-15 10:04 UTCVendor advisory
  12. 2026-10-15 10:04 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  13. 2026-10-14 09:13 UTCEG score recompute
  14. 2026-10-14 09:13 UTCVendor advisory
  15. 2026-10-14 09:13 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  16. 2026-10-13 16:26 UTCEPSS rescoreEPSS 99% · 99th percentile
  17. 2026-10-13 08:21 UTCVendor advisory
  18. 2026-10-13 08:20 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  19. 2026-10-12 21:37 UTCEG score recompute
  20. 2026-10-12 07:29 UTCVendor advisory
  21. 2026-10-12 07:29 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  22. 2026-10-12 03:41 UTCVendor advisory
  23. 2026-10-12 03:40 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  24. 2026-10-11 23:50 UTCVendor advisory
  25. 2026-10-11 23:49 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  26. 2026-10-11 20:00 UTCEG score recompute
  27. 2026-10-11 20:00 UTCVendor advisory
  28. 2026-10-11 20:00 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  29. 2026-10-11 16:12 UTCEG score recompute
  30. 2026-10-11 16:12 UTCVendor advisory
  31. 2026-10-11 16:12 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  32. 2026-10-11 12:25 UTCEG score recompute
  33. 2026-10-11 12:25 UTCVendor advisory
  34. 2026-10-11 12:25 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  35. 2026-10-11 08:37 UTCVendor advisory
  36. 2026-10-11 08:37 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  37. 2026-10-11 04:49 UTCVendor advisory
  38. 2026-10-11 04:48 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  39. 2026-10-11 00:59 UTCVendor advisory
  40. 2026-10-11 00:59 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  41. 2026-10-10 21:09 UTCEG score recompute
  42. 2026-10-10 21:09 UTCVendor advisory
  43. 2026-10-10 21:09 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  44. 2026-10-10 19:54 UTCEPSS rescoreEPSS 99% · 99th percentile
  45. 2026-10-10 17:19 UTCVendor advisory
  46. 2026-10-10 17:19 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  47. 2026-10-10 13:32 UTCVendor advisory
  48. 2026-10-10 13:31 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  49. 2026-10-10 09:43 UTCVendor advisory
  50. 2026-10-10 09:43 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  51. 2026-10-10 05:55 UTCVendor advisory
  52. 2026-10-10 05:55 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  53. 2026-10-10 02:08 UTCVendor advisory
  54. 2026-10-10 02:08 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  55. 2026-10-09 22:20 UTCEG score recompute
  56. 2026-10-09 22:20 UTCVendor advisory
  57. 2026-10-09 22:20 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  58. 2026-10-09 20:00 UTCEPSS rescoreEPSS 99% · 99th percentile
  59. 2026-10-09 18:33 UTCVendor advisory
  60. 2026-10-09 18:33 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  61. 2026-10-09 14:45 UTCVendor advisory
  62. 2026-10-09 14:45 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  63. 2026-10-09 10:53 UTCVendor advisory
  64. 2026-10-09 10:52 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  65. 2026-10-09 07:05 UTCVendor advisory
  66. 2026-10-09 07:05 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  67. 2026-10-09 03:17 UTCVendor advisory
  68. 2026-10-09 03:17 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  69. 2026-10-08 23:29 UTCVendor advisory
  70. 2026-10-08 23:29 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  71. 2026-10-08 19:42 UTCVendor advisory
  72. 2026-10-08 19:42 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  73. 2026-10-08 15:54 UTCVendor advisory
  74. 2026-10-08 15:54 UTCGHSA enrichmentGHSA-xhq8-8cqj-q337 · GitHub severity HIGH · GitHub CVSS 8.8
  75. 2026-10-08 12:06 UTCVendor advisory

Publicly available exploits

(3 references)

Public exploit code is referenced for this CVE (1 Metasploit module, 2 Exploit-DB entries). Defenders should treat patch urgency accordingly.

  • Exploit-DBEDB-17473✓ verified
    Published Jul 3, 2011

    Adobe Reader X 10.0.0 < 10.0.1 - Atom Type Confusion

    Open source ↗
  • Exploit-DBEDB-17175✓ verified
    Published Apr 16, 2011

    Adobe Flash Player 10.2.153.1 - SWF Memory Corruption (Metasploit)

    Open source ↗
  • Metasploitexploit/windows/browser/adobe_flashplayer_flash10o✓ verified
    Published Apr 16, 2011

    Adobe Flash Player 10.2.153.1 SWF Memory Corruption Vulnerability

    Open source ↗

Frequently asked(6)

What is CVE-2011-0611?
CVE-2011-0611 is a critical-severity vulnerability; its CVE record was published on April 13, 2011. Adobe Flash Player before 10.2.154.27 on Windows, Mac OS X, Linux, and Solaris and 10.2.156.12 and earlier on Android; Adobe AIR before 2.6.19140; and Authplay.dll (aka AuthPlayLib.bundle) in Adobe Reader 9.x before 9.4.4 and 10.x through 10.0.1 on Windows, Adobe Reader 9.x before 9.4.4 and 10.x…
When was CVE-2011-0611 made public?
CVE-2011-0611 was made public on April 11, 2011: that is the date its CVE record's CNA, Adobe Systems Incorporated, gives for when the vulnerability was made public. The CVE record itself was published on April 13, 2011. EchelonGraph's copy of the record carries a last-modified date of April 21, 2026; the record at its source may have been updated since.
Is CVE-2011-0611 actively exploited?
Yes. CISA added CVE-2011-0611 to the Known Exploited Vulnerabilities catalog on March 3, 2022, affecting Adobe Flash Player. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2011-0611?
CVE-2011-0611 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2011-0611?
CVE-2011-0611 affects Adobe Flash Player.
How do I remediate CVE-2011-0611?
A fix for CVE-2011-0611 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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