CVE-2009-2510
The CryptoAPI component in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server...
The CryptoAPI component in Microsoft Windows 2000 SP4, 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, as used by Internet Explorer and other applications, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, aka "Null Truncation in X.509 Common Name Vulnerability," a related issue to CVE-2009-2408.
Exploit likelihood
What each source reports
NVD Score used
The CryptoAPI component in Microsoft Windows 2000 SP4, 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, as used by Internet Explorer and other applications, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, aka "Null Truncation in X.509 Common Name Vulnerability," a related issue to CVE-2009-2408.
- Record
CVE-2009-2510- CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-310
- Updated
- 2026-11-02
CVE List No score
The CryptoAPI component in Microsoft Windows 2000 SP4, 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, as used by Internet Explorer and other applications, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, aka "Null Truncation in X.509 Common Name Vulnerability," a related issue to CVE-2009-2408.
- Record
CVE-2009-2510- Updated
- 2026-11-02
EUVDEUVD-2009-2505 No score
The CryptoAPI component in Microsoft Windows 2000 SP4, 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, as used by Internet Explorer and other applications, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, aka "Null Truncation in X.509 Common Name Vulnerability," a related issue to CVE-2009-2408.
- Record
EUVD-2009-2505- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3jw8-9rgf-396w No score
The CryptoAPI component in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server...
The CryptoAPI component in Microsoft Windows 2000 SP4, 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, as used by Internet Explorer and other applications, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, aka "Null Truncation in X.509 Common Name Vulnerability," a related issue to CVE-2009-2408.
- Record
GHSA-3jw8-9rgf-396w- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-2510 is a medium vulnerability (CVSS 6.8) in Microsoft Windows 2000, published October 14, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.32%, the 92nd percentile. No source names a fixed version.
References
securityfocus.com/bid/36475
us-cert.gov/cas/techalerts/TA09-286A.html
wired.com/threatlevel/2009/07/kaminsky
networkworld.com/news/2009/091709-microsoft-ie-security-hole.html
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5842
docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-056
nvd.nist.gov/vuln/detail/CVE-2009-2510
github.com/advisories/GHSA-3jw8-9rgf-396w