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CVE-2009-1571

HIGH · CVSS 10.0EPSS 6.5%EU EUVD

Use-after-free vulnerability in the HTML parser in Mozilla Firefox 3.0.x before 3.0.18 and 3.5.x before 3.5.8, Thunderbird before 3.0.2, and SeaMonkey before 2.0.3 allows remote attackers to execute arbitrary code via unspecified method calls that attempt to access freed objects in low-memory situations.

Key facts

CVSS score
10.0 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness (CWE)
CWE-94
EPSS score
6.5% (94th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2009-1567)
Published
February 22, 2010
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-1567 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / firefox
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey
  • mozilla / seamonkey

and 17 more…

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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