CVE-2013-3918

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-10-06), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 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: 74%CVSS: 8.8Exploit: cisa kev · ssvc active · Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

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

The InformationCardSigninHelper Class ActiveX control in icardie.dll in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds write) via a crafted web page that is accessed by Internet Explorer, as exploited in the wild in November 2013, aka "InformationCardSigninHelper Vulnerability."

CVSS v3
8.8
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
74%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

November 12, 2013

Last Modified

April 22, 2026

Advisory Details (3)

Auto-updated May 2, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

Archived MSDN and TechNet Blogs | Microsoft Learn

http://blogs.technet.com/b/msrc/archive/2013/11/11/activex-control-issue-being-addressed-in-update-tuesday.aspx
generic🔴 Active Exploitation

IE Zero-Day Vulnerability Exploiting msvcrt.dll - SANS ISC

https://isc.sans.edu/forums/diary/16985
generic

Microsoft Security Bulletin MS13-090 - Critical | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-090

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 60× in last 7d / 221× 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 660 total refreshes for this CVE.

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

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-29857✓ verified
    First seen Nov 27, 2013

    Microsoft Internet Explorer - CardSpaceClaimCollection ActiveX Integer Underflow (MS13-090) (Metasploit)

    Open source ↗
  • Metasploitexploit/windows/browser/ms13_090_cardspacesigninhelper✓ verified
    First seen Nov 8, 2013

    MS13-090 CardSpaceClaimCollection ActiveX Integer Underflow

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2013-3918?
CVE-2013-3918 is a critical vulnerability published on November 12, 2013. The InformationCardSigninHelper Class ActiveX control in icardie.dll in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allows remote…
When was CVE-2013-3918 disclosed?
CVE-2013-3918 was first published in the National Vulnerability Database on November 12, 2013, 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-2013-3918 actively exploited?
Yes. CISA added CVE-2013-3918 to the Known Exploited Vulnerabilities catalog on October 6, 2025, affecting Microsoft Windows. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2013-3918?
CVE-2013-3918 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.
Which products are affected by CVE-2013-3918?
CVE-2013-3918 affects Microsoft Windows. 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-2013-3918?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-3918, 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-2013-3918

Explore →

Is Your Infrastructure Affected by CVE-2013-3918?

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

Start Free Scan →Browse All CVEs