What’s Vulnerable › Vulnerabilities

CVE-2011-1970

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 23.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-08-10 · updated 2026-06-16
• Weakness: CWE-119

Description

The DNS server in Microsoft Windows Server 2003 SP2 and Windows Server 2008 SP2, R2, and R2 SP1 does not properly initialize memory, which allows remote attackers to cause a denial of service (service outage) via a query for a nonexistent domain, aka "DNS Uninitialized Memory Corruption Vulnerability."

Affected products

• Microsoft Windows 2003 Server: all versions
• Microsoft Windows Server 2003: all versions
• Microsoft Windows Server 2008: r2

References

• http://www.us-cert.gov/cas/techalerts/TA11-221A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-058
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12870
• http://www.us-cert.gov/cas/techalerts/TA11-221A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-058
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12870

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