CVE-2009-2510 json
The CryptoAPI component in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, W…
published 2009-10-14 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2505
- cvss
- 6.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.3%
- EPSS 5.3% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
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 prediction
5.32% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-310 Cryptographic Issues
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2009/ms09-056
vendor-advisory
-
securityfocus.com
/bid/36475
vdb-entry
-
us-cert.gov
/cas/techalerts/TA09-286A.html
third-party-advisory, us-government-resource
- wired.com /threatlevel/2009/07/kaminsky/
- networkworld.com /news/2009/091709-microsoft-ie-security-hole.html
- networkworld.com /news/2009/073009-more-holes-found-in-webs.html
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5842
vdb-entry, signature
Sources
- CVE List CVE-2009-2510
- NVD CVE-2009-2510
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.