Is CVE-2015-5887 being actively exploited?

CVE-2015-5887 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2015-5887?

CVE-2015-5887 has a CVSS 2.0 base score of 10.0 (HIGH).

CVE-2015-5887

HIGH · CVSS 10.0EPSS 2.5%EU EUVD

The TLS Handshake Protocol implementation in Secure Transport in Apple OS X before 10.11 accepts a Certificate Request message within a session in which no Server Key Exchange message has been sent, which allows remote attackers to have an unspecified impact via crafted TLS data.

Key facts

CVSS score: 10.0 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-17
EPSS score: 2.5% (84th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2015-5833)
Published: October 9, 2015
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2015-5833 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

apple / mac os x

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Apple Mac OS X 10.6 - Apple Inc. - Common Criteria BSI-DSZ-CC-0536-2010 - archived
Apple Mac OS X v10.3.6 and Apple Mac OS X Server V10.3.6 - Apple Inc. - Common Criteria CCEVS-VR-0086-2005 - archived

References

http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html(Vendor Advisory)
http://www.securityfocus.com/bid/76908
http://www.securitytracker.com/id/1033703
https://support.apple.com/HT205267(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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