CVE-2009-0901

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-02. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 42%CVSS: 8.8Exploit: NoneExposed: 0

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

The Active Template Library (ATL) in Microsoft Visual Studio .NET 2003 SP1, Visual Studio 2005 SP1 and 2008 Gold, and Visual C++ 2005 SP1 and 2008 Gold and SP1; and Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2; does not prevent VariantClear calls on an uninitialized VARIANT, which allows remote attackers to execute arbitrary code via a malformed stream to an ATL (1) component or (2) control, related to ATL headers and error handling, aka "ATL Uninitialized Object Vulnerability."

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
98.5%
KEV
Not listed

Published

July 29, 2009

Last Modified

May 27, 2026

Advisory Details (6)

Auto-updated May 30, 2026
No patch confirmed yet.
generic

Adobe - Security Advisories: APSA09-04 - Security Advisory for Adobe Flash Player

http://www.adobe.com/support/security/advisories/apsa09-04.html
generic

About Secunia Research | Flexera

http://secunia.com/advisories/36746
generic

About Secunia Research | Flexera

http://secunia.com/advisories/36374
generic

About Secunia Research | Flexera

http://secunia.com/advisories/36187
generic

About Secunia Research | Flexera

http://secunia.com/advisories/35967
generic

'[security bulletin] HPSBMA02488 SSRT100013 rev.1 - HP ProLiant Support Pack 8.30 for Windows, Remote' - MARC

http://marc.info/?l=bugtraq&m=126592505426855&w=2

Vendor Advisories for CVE-2009-0901(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 32× 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
  2. 2026-07-05 02:26 UTCEPSS rescore
  3. 2026-07-05 02:26 UTCEPSS rescore
  4. 2026-07-01 15:02 UTCEPSS rescore
  5. 2026-06-30 23:19 UTCEPSS rescore
  6. 2026-06-29 14:02 UTCEPSS rescore
  7. 2026-06-29 14:02 UTCEPSS rescore
  8. 2026-06-28 04:52 UTCEPSS rescore
  9. 2026-06-28 04:52 UTCEPSS rescore
  10. 2026-06-27 03:05 UTCEPSS rescore
  11. 2026-06-25 13:46 UTCEPSS rescore
  12. 2026-06-25 13:46 UTCEPSS rescore
  13. 2026-06-24 14:02 UTCEPSS rescore
  14. 2026-06-24 14:02 UTCEPSS rescore
  15. 2026-06-23 21:29 UTCEPSS rescore
  16. 2026-06-23 21:29 UTCEPSS rescore
  17. 2026-06-21 01:56 UTCEPSS rescore
  18. 2026-06-21 01:56 UTCEPSS rescore
  19. 2026-06-18 17:49 UTCEPSS rescore
  20. 2026-06-18 17:49 UTCEPSS rescore
  21. 2026-06-17 17:49 UTCEPSS rescore
  22. 2026-06-17 17:49 UTCEPSS rescore
  23. 2026-06-16 17:49 UTCEPSS rescore
  24. 2026-06-16 17:49 UTCEPSS rescore
  25. 2026-06-15 17:44 UTCEPSS rescore
Show 30 more
  1. 2026-06-14 23:14 UTCEPSS rescore
  2. 2026-06-14 23:14 UTCEPSS rescore
  3. 2026-06-13 22:57 UTCEPSS rescore
  4. 2026-06-12 23:08 UTCEPSS rescore
  5. 2026-06-12 23:08 UTCEPSS rescore
  6. 2026-06-10 22:14 UTCEPSS rescore
  7. 2026-06-10 13:17 UTCEPSS rescore
  8. 2026-06-06 13:44 UTCEPSS rescore
  9. 2026-06-06 13:44 UTCEPSS rescore
  10. 2026-06-06 13:44 UTCEPSS rescore
  11. 2026-06-05 22:44 UTCEPSS rescore
  12. 2026-06-05 22:44 UTCEPSS rescore
  13. 2026-06-05 06:07 UTCEPSS rescore
  14. 2026-05-31 00:13 UTCEPSS rescore
  15. 2026-05-31 00:13 UTCEPSS rescore
  16. 2026-05-30 16:00 UTCEG score recompute
  17. 2026-05-30 16:00 UTCGHSA enrichment
  18. 2026-05-28 13:42 UTCEPSS rescore
  19. 2026-05-28 13:42 UTCEPSS rescore
  20. 2026-05-28 13:42 UTCEPSS rescore
  21. 2026-05-26 13:41 UTCEPSS rescore
  22. 2026-05-26 13:41 UTCEPSS rescore
  23. 2026-05-26 07:16 UTCEPSS rescore
  24. 2026-05-26 07:16 UTCEPSS rescore
  25. 2026-05-24 16:43 UTCEPSS rescore
  26. 2026-05-22 21:15 UTCEPSS rescore
  27. 2026-05-22 21:15 UTCEPSS rescore
  28. 2026-05-20 22:37 UTCEPSS rescore
  29. 2026-05-20 22:37 UTCEPSS rescore
  30. 2026-05-18 21:29 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2009-0901?
CVE-2009-0901 is a high vulnerability published on July 29, 2009. The Active Template Library (ATL) in Microsoft Visual Studio .NET 2003 SP1, Visual Studio 2005 SP1 and 2008 Gold, and Visual C++ 2005 SP1 and 2008 Gold and SP1; and Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server 2008 Gold and SP2; does not prevent…
When was CVE-2009-0901 disclosed?
CVE-2009-0901 was first published in the National Vulnerability Database on July 29, 2009, with the most recent update on May 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-0901 actively exploited?
CVE-2009-0901 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2009-0901?
CVE-2009-0901 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2009-0901?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-0901, 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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