CVE-2009-2516

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory published 2022-05-02. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.1Exploit: NoneExposed: 0

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

The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold and SP1, and Server 2008 Gold does not properly validate data sent from user mode, which allows local users to gain privileges via a crafted PE .exe file that triggers a NULL pointer dereference during chain traversal, aka "Windows Kernel NULL Pointer Dereference Vulnerability."

CVSS v3
7.1
EG Score
7.1(medium)
EPSS
67.6%
KEV
Not listed

Published

October 14, 2009

Last Modified

April 23, 2026

References (8)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 41× 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. 2026-07-06 16:23 UTCEPSS rescore
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  1. 2026-06-19 19:22 UTCEPSS rescore
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  35. 2026-05-30 14:55 UTCEG score recompute
  36. 2026-05-30 14:55 UTCGHSA enrichment
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  45. 2026-05-26 07:16 UTCEPSS rescore
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  48. 2026-05-22 21:15 UTCEPSS rescore
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  50. 2026-05-20 22:37 UTCEPSS rescore
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  52. 2026-05-20 11:21 UTCEPSS rescore
  53. 2026-05-20 11:20 UTCEPSS rescore
  54. 2026-05-18 21:29 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2009-2516?
CVE-2009-2516 is a high vulnerability published on October 14, 2009. The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold and SP1, and Server 2008 Gold does not properly validate data sent from user mode, which allows local users to gain privileges via a crafted PE .exe file that triggers a NULL pointer dereference during chain…
When was CVE-2009-2516 disclosed?
CVE-2009-2516 was first published in the National Vulnerability Database on October 14, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-2516 actively exploited?
CVE-2009-2516 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 67.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2009-2516?
CVE-2009-2516 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2009-2516?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-2516, 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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