CVE-2011-2005

HIGHNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-28), 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
7.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 32%CVSS: 7.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka "Ancillary Function Driver Elevation of Privilege Vulnerability."

CVSS v3
7.8
EG Score
9.0(high)
EPSS
98.1%
KEV
⚠ Exploited

Published

October 12, 2011

Last Modified

April 22, 2026

Advisory Details (2)

Auto-updated May 19, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-2005
generic

Microsoft Security Bulletin MS11-080 - Important | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080

Data Freshness Timeline

(refreshed 97× in last 7d / 414× 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 557 total refreshes for this CVE.

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

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-21844✓ verified
    First seen Oct 10, 2012

    Microsoft Windows - 'AfdJoinLeaf' Local Privilege Escalation (MS11-080) (Metasploit)

    Open source ↗
  • Exploit-DBEDB-18176✓ verified
    First seen Nov 30, 2011

    Microsoft Windows XP/2003 - 'afd.sys' Local Privilege Escalation (MS11-080)

    Open source ↗
  • Metasploitexploit/windows/local/ms11_080_afdjoinleaf✓ verified
    First seen Nov 30, 2011

    MS11-080 AfdJoinLeaf Privilege Escalation

    Open source ↗

Frequently asked(6)

What is CVE-2011-2005?
CVE-2011-2005 is a high vulnerability published on October 12, 2011. afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka "Ancillary Function Driver Elevation of Privilege…
When was CVE-2011-2005 disclosed?
CVE-2011-2005 was first published in the National Vulnerability Database on October 12, 2011, with the most recent update on April 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-2005 actively exploited?
Yes. CISA added CVE-2011-2005 to the Known Exploited Vulnerabilities catalog on March 28, 2022, affecting Microsoft Ancillary Function Driver (afd.sys). KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2011-2005?
CVE-2011-2005 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-2011-2005?
CVE-2011-2005 affects Microsoft Ancillary Function Driver (afd.sys). 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-2011-2005?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-2005, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2011-2005

Explore →

Is Your Infrastructure Affected by CVE-2011-2005?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs