CVE-2011-0039
The Local Security Authority Subsystem Service (LSASS) in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly process authentication requests, which allows local users to gain privileges via a request with a crafted length, aka "LSASS…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.92%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Local Security Authority Subsystem Service (LSASS) in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly process authentication requests, which allows local users to gain privileges via a request with a crafted length, aka "LSASS Length Validation Vulnerability."
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 1.92% probability · 80th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- microsoft/windows 2003 server · microsoft/windows xp
- Source
- secure@microsoft.com
EPSS 1.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://secunia.com/advisories/43253Vendor Advisory
- http://www.securityfocus.com/bid/46152
- http://www.securitytracker.com/id?1025049
- http://www.vupen.com/english/advisories/2011/0327Vendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-014
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12537
- http://secunia.com/advisories/43253Vendor Advisory
- http://www.securityfocus.com/bid/46152
- http://www.securitytracker.com/id?1025049
- http://www.vupen.com/english/advisories/2011/0327Vendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-014
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12537
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.