Is CVE-2015-5887 in the CISA KEV catalog?

No. CVE-2015-5887 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-5887?

CVE-2015-5887 has a CVSS v2 base score of 10.0 (HIGH).

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

CVE-2015-5887 has an EPSS score of 2.46% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2015-5887?

No published fix for CVE-2015-5887 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2015-5887

HIGHEPSS 83th pctl

10.0

CVSS v2

NVD

Description

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.

CWE-17

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

TridentStack Control tracks known vulnerabilities across your Windows, macOS, and Linux fleet and shows the fix as soon as one is published. See how it works

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

2.46%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Vendor Advisory2

Other references2

Related Vulnerabilities

Other CWE-17 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-0240	High	10.0	88%	-	Fix
CVE-2015-3183	Medium	5.0	73%	-	Fix
CVE-2014-9222	High	10.0	64%	-	-
CVE-2015-4620	High	7.8	38%	-	Fix
CVE-2014-9707	High	7.5	28%	-	-
CVE-2015-2526	Medium	5.0	24%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.