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Fencer Vulns
high 7.5

CVE-2004-0123 in the critical feed json

Double free vulnerability in the ASN.1 library as used in Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003, allows remote…

published 2004-04-16 22 y ago modified 2026-06-16 4 mo ago also EUVD-2004-0123

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
29.7%
EPSS 29.7% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

Double free vulnerability in the ASN.1 library as used in Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003, allows remote attackers to cause a denial of service and possibly execute arbitrary code.

Patch / fix

Exploit prediction

29.75% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.