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CVE-2015-5986

29
FAUCET Score

CVE-2015-5986 is a denial-of-service vulnerability affecting ISC BIND versions 9.9.7 before 9.9.7-P3 and 9.10.x before 9.10.2-P4, including Apple's macOS Server. A remote attacker can exploit this flaw by sending a specially crafted DNS response, causing the named daemon to crash due to an assertion failure. With a CVSS score of 7.1, this vulnerability is considered high severity due to its network-based attack vector, medium attack complexity, and complete denial-of-service impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or KEV listing, though it has received some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 9.9.7CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:p2:*:*:*:*:*:*
<= 9.10.2CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:p3:*:*:*:*:*:*
5.0.15CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x_server:5.0.15:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.1HIGH

AV:N/AC:M/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
26.07%
Probability of exploitation in next 30 days
EPSS Percentile
97.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2607 is in the 91st percentile among its peer group of 8,918 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2015-5986Moderate

Bind: fromwire_openpgpkey() incorrect boundary check Denial of Service

Sep 2, 2015

References

lists.apple.com / archives/security-announce/2015/Oct/msg00009.html
lists.fedoraproject.org / pipermail/package-announce/2015-September/165810.html
lists.fedoraproject.org / pipermail/package-announce/2015-September/167465.html
kb.isc.org / article/AA-01291
Vendor Advisory
kb.isc.org / article/AA-01305
kb.isc.org / article/AA-01306
kb.isc.org / article/AA-01307
kb.isc.org / article/AA-01438
kc.mcafee.com / corporate/index
security.gentoo.org / glsa/201510-01
security.netapp.com / advisory/ntap-20190730-0001
support.apple.com / HT205376
securityfocus.com / bid/76618
securitytracker.com / id/1033453