What’s Vulnerable › Vulnerabilities

CVE-2009-0079

• Severity: medium (CVSS 6.9 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2009-04-15 · updated 2026-06-16
• Weakness: CWE-264

Description

The RPCSS service in Microsoft Windows XP SP2 and SP3 and Server 2003 SP1 and SP2 does not properly implement isolation among a set of distinct processes that (1) all run under the NetworkService account or (2) all run under the LocalService account, which allows local users to gain privileges by accessing the resources of one of the processes, aka "Windows RPCSS Service Isolation Vulnerability."

Affected products

• Microsoft Windows Server 2003: all versions
• Microsoft Windows XP Service Pack 3: all versions

References

• http://osvdb.org/53667
• http://www.securitytracker.com/id?1022044
• http://www.us-cert.gov/cas/techalerts/TA09-104A.html
• http://www.vupen.com/english/advisories/2009/1026
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-012
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6147
• http://osvdb.org/53667
• http://www.securitytracker.com/id?1022044
• http://www.us-cert.gov/cas/techalerts/TA09-104A.html
• http://www.vupen.com/english/advisories/2009/1026
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-012
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6147

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