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CVE-2010-0249

Use After Free: Is CVE-2010-0249 real, exploitable, or a false positive? Here's the community verdict.

Community verdict: No field verdicts yet. Be the first practitioner to weigh in.

signals

public sources

Exploited in wild
Yes
CISA KEV · May 20, 2026
Public exploit
Metasploit +1
Metasploit/EDB/PoC
Base severity
8.8 High
CVSS
Exploitation prob.
92%
FIRST EPSS
Weakness
CWE-416 · Use After Free
CWE

Confirmed exploited in the wild. Patch this first, regardless of the base score.

cisa ssvc

CISA Vulnrichment · assessed

Exploitation
Active
in the wild
Automatable
No
at scale
Technical impact
Total
on success

CISA decision, by how critical the affected system is to you:

  • low impact → Track
  • medium impact → Attend
  • high impact → Act

Track: normal patch cycle · Track*: watch closely · Attend: patch sooner · Act: patch now. About SSVC ↗

public exploits

links to sources — we don’t host code

A working exploit is publicly available from a maintained source. Treat this as higher urgency and verify your exposure.

baseline read

auto · not a community verdict

Real — exploited in the wild

CISA confirms active exploitation. Treat scanner hits as true positives unless your specific version or config is unaffected.

Based on CISA KEV

Confirm or dispute →
Affected:Microsoft

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Use-after-free vulnerability in Microsoft Internet Explorer 6, 6 SP1, 7, and 8 on Windows 2000 SP4; Windows XP SP2 and SP3; Windows Server 2003 SP2; Windows Vista Gold, SP1, and SP2; Windows Server 2008 Gold, SP2, and R2; and Windows 7 allows remote attackers to execute arbitrary code by accessing a pointer associated with a deleted object, related to incorrectly initialized memory and improper handling of objects in memory, as exploited in the wild in December 2009 and January 2010 during Operation Aurora, aka "HTML Object Memory Corruption Vulnerability."

Published · Added to CISA KEV (5969 days after publication)

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timeline

  1. CISA SSVC assessment · exploitation: active
  2. Added to CISA KEV · confirmed exploited in the wild
  3. Published by NVD
  4. Added to VulnCheck KEV · reported exploited in the wild

Score and exploit changes tracked since .

Community ground truth

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In your experience, is this finding real and exploitable?

awaiting field verdicts
Real, but not a risk here
Not a real issue

Curated baseline: TruePositive's read from public sources is Real & exploitable — a starting point, not a community verdict.

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Field notes & remediation

Verdicts are the quick signal. Notes are the evidence and fixes behind them.

  • 0
    Field note · TruePositive EditorialCurated

    This is confirmed exploited in the wild. It is in the CISA KEV catalog, so attackers are actively using it, not just researchers. It is reachable over the network with no authentication. Patch this on priority and confirm the fix holds.

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Same weakness: CWE-416 · Use After Free.