CVE-2003-0507

CVE-2003-0507 is a high-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 27% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Stack-based buffer overflow in Active Directory in Windows 2000 before SP4 allows remote attackers to cause a denial of service (reboot) and possibly execute arbitrary code via an LDAP version 3 search request with a large number of (1) "AND," (2) "OR," and possibly other statements, which causes LSASS.EXE to crash.

Frequently asked questions

What is CVE-2003-0507?
Stack-based buffer overflow in Active Directory in Windows 2000 before SP4 allows remote attackers to cause a denial of service (reboot) and possibly execute arbitrary code via an LDAP version 3 search request with a large number of (1) "AND," (2) "OR," and possibly other statements, which causes LSASS.EXE to crash.
How severe is CVE-2003-0507?
CVE-2003-0507 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0507 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0507?
CVE-2003-0507 affects Microsoft Windows 2000. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-0507?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2003-0507 published?
CVE-2003-0507 was published on 2003-08-07 and last updated on 2026-06-16.

References

Affected products (1)

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