No exploitation reportedFix available

CVE-2015-7987

Q: Is CVE-2015-7987 actively exploited?

Active exploitation of CVE-2015-7987 has not been confirmed. Its EPSS score was 2.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2015-7987?

CVE-2015-7987 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2016-06-26
Fixed in10.11.1 · 10.10.5 · 10.9.5
WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Multiple buffer overflows in mDNSResponder before 625.41.2 allow remote attackers to read or write to out-of-bounds memory locations via vectors involving the (1) GetValueForIPv4Addr, (2) GetValueForMACAddr, (3) rfc3110_import, or (4) CopyNSEC3ResourceRecord function.

Timeline

dates in UTC

2016-06-2601:59CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2015-7987?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2015-7987?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Apple mac os x

Branch	Affected	Fixed in	Source
10.11	≥ 10.11.0, < 10.11.1	10.11.1	NVD
10.10	≥ 10.10.0, < 10.10.5	10.10.5	NVD
10.9	≥ 10.9, < 10.9.5	10.9.5	NVD

Apple airport base station firmwareversion to verify

Branch	Affected	Fixed in	Source
7.7	≥ 7.7, < 7.7.7	7.7.7	NVD
7.6	≥ 7.6, < 7.6.7	7.6.7	NVD

Apple iphone os

Branch	Affected	Fixed in	Source
9.x	≥ 9.0, < 9.1	9.1	NVD

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Apple mac os x to 10.11.1 · 10.10.5 · 10.9.5

Advisories and patches

support.apple.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
NVDweakness (CWE)CWE-119read 2026-10-23
FIRST EPSSEPSS score2.5 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2016-06-26
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2015-7987?

Is CVE-2015-7987 actively exploited?

Active exploitation of CVE-2015-7987 has not been confirmed. Its EPSS score was 2.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2015-7987?

CVE-2015-7987 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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