CVE-2015-5894 json
The X.509 certificate-trust implementation in Apple OS X before 10.11 does not recognize that the kSecRevocationRequirePositiveResponse fla…
published 2015-10-09 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-5840
- cvss
- 4.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
The X.509 certificate-trust implementation in Apple OS X before 10.11 does not recognize that the kSecRevocationRequirePositiveResponse flag implies a revocation-checking requirement, which makes it easier for man-in-the-middle attackers to spoof endpoints by leveraging access to a revoked certificate.
Exploit prediction
0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-17 DEPRECATED: Code
References
-
lists.apple.com
/archives/security-announce/2015/Sep/msg00008.html
vendor-advisory
-
support.apple.com
/HT205267
vendor-advisory
-
securitytracker.com
/id/1033703
vdb-entry
-
securityfocus.com
/bid/76908
vdb-entry
Sources
- CVE List CVE-2015-5894
- NVD CVE-2015-5894
Fencer Intel 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.