CVE-2009-0161
MEDIUM · CVSS 6.4EPSS 2.3%EU EUVD
The OpenSSL::OCSP module for Ruby in Apple Mac OS X 10.5 before 10.5.7 misinterprets an unspecified invalid response as a successful OCSP certificate validation, which might allow remote attackers to spoof certificate authentication via a revoked certificate.
Key facts
- CVSS score
- 6.4 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:P/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 2.3% (83th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-0170)
- Published
- May 13, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-0170 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- apple / mac os x
- apple / mac os x
- apple / mac os x
- apple / mac os x
- apple / mac os x
- apple / mac os x
- apple / mac os x
- apple / mac os x server
- apple / mac os x server
- apple / mac os x server
- apple / mac os x server
- apple / mac os x server
- apple / mac os x server
- apple / mac os x server
References
- http://lists.apple.com/archives/security-announce/2009/May/msg00002.html(Patch, Vendor Advisory)
- http://secunia.com/advisories/35074
- http://support.apple.com/kb/HT3549(Patch, Vendor Advisory)
- http://www.securityfocus.com/bid/34926
- http://www.us-cert.gov/cas/techalerts/TA09-133A.html(US Government Resource)
- http://www.vupen.com/english/advisories/2009/1297
- https://exchange.xforce.ibmcloud.com/vulnerabilities/50592
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain