Skip to content
Fencer Vulns
high 7.8

CVE-2009-2524 in the critical feed json

Integer underflow in the NTLM authentication feature in the Local Security Authority Subsystem Service (LSASS) in Microsoft Windows XP SP2…

published 2009-10-14 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2519

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
28.3%
EPSS 28.3% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

Integer underflow in the NTLM authentication feature in the Local Security Authority Subsystem Service (LSASS) in Microsoft 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 cause a denial of service (reboot) via a malformed packet, aka "Local Security Authority Subsystem Service Integer Overflow Vulnerability."

Exploit prediction

28.26% 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 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness

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.