CVE-2010-2731

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 31%CVSS: —Exploit: NoneExposed: 0

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

Unspecified vulnerability in Microsoft Internet Information Services (IIS) 5.1 on Windows XP SP3, when directory-based Basic Authentication is enabled, allows remote attackers to bypass intended access restrictions and execute ASP files via a crafted request, aka "Directory Authentication Bypass Vulnerability."

CVSS v3
—
EG Score
0.0(none)
EG Risk
0
EG Risk 0/100

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. It is distinct from the 0–10 EG Score, which measures severity.

EPSS
98.1%
KEV
Not listed

Published

September 15, 2010

Last Modified

April 29, 2026

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 30× 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.

  1. 2026-07-23 14:14 UTCEPSS rescore
  2. 2026-07-23 01:02 UTCEG score recompute
  3. 2026-07-23 00:39 UTCEG score recompute▼ 0.20
  4. 2026-07-23 00:06 UTCEG score recompute▲ 0.20
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  30. 2026-05-31 00:14 UTCEPSS rescore
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  34. 2026-05-29 10:20 UTCGHSA enrichment
  35. 2026-05-28 13:42 UTCEPSS rescore
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  44. 2026-05-22 21:15 UTCEPSS rescore
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  52. 2026-05-18 21:29 UTCEPSS rescore
  53. 2026-05-18 21:29 UTCEPSS rescore

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-14179✓ verified
    First seen Jul 2, 2010

    Microsoft IIS 5.0 - Authentication Bypass (MS10-065)

    Open source ↗
  • Metasploitauxiliary/admin/http/iis_auth_bypass✓ verified
    First seen Jul 2, 2010

    MS10-065 Microsoft IIS 5 NTFS Stream Authentication Bypass

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2010-2731?
CVE-2010-2731 is a none vulnerability published on September 15, 2010. Unspecified vulnerability in Microsoft Internet Information Services (IIS) 5.1 on Windows XP SP3, when directory-based Basic Authentication is enabled, allows remote attackers to bypass intended access restrictions and execute ASP files via a crafted request, aka "Directory Authentication Bypass…
When was CVE-2010-2731 disclosed?
CVE-2010-2731 was first published in the National Vulnerability Database on September 15, 2010, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2010-2731 actively exploited?
CVE-2010-2731 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2010-2731?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2010-2731, 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

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