CVE-2016-0746

Name: CVE-2016-0746
Creator: NVD / NIST
Published: 2016-02-15T19:59:01.157+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 8.63%

Last modified Jun 17, 2026

CVE-2016-0746 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Use-after-free vulnerability in the resolver in nginx 0.6.18 through 1.8.0 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (worker process crash) or possibly have unspecified other impact via a crafted DNS response related to CNAME response processing.. EPSS estimates a 8.63% chance of exploitation in the next 30 days.

Description

Use-after-free vulnerability in the resolver in nginx 0.6.18 through 1.8.0 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (worker process crash) or possibly have unspecified other impact via a crafted DNS response related to CNAME response processing.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

8.63%

94.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
F5	Nginx	>= 0.6.18, <= 1.8.0
F5	Nginx	>= 1.9.0, < 1.9.10
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	15.10
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Opensuse	Leap	42.1
Apple	Xcode	< 13.0

References

http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.htmlMailing List, Third Party Advisory
http://mailman.nginx.org/pipermail/nginx/2016-January/049700.htmlVendor Advisory
http://seclists.org/fulldisclosure/2021/Sep/36Mailing List, Third Party Advisory
http://www.debian.org/security/2016/dsa-3473Third Party Advisory
http://www.securitytracker.com/id/1034869Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2892-1Third Party Advisory
https://access.redhat.com/errata/RHSA-2016:1425Third Party Advisory
https://bto.bluecoat.com/security-advisory/sa115Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1302588Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201606-06Third Party Advisory
https://support.apple.com/kb/HT212818Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-02/msg00042.htmlMailing List, Third Party Advisory
http://mailman.nginx.org/pipermail/nginx/2016-January/049700.htmlVendor Advisory
http://seclists.org/fulldisclosure/2021/Sep/36Mailing List, Third Party Advisory
http://www.debian.org/security/2016/dsa-3473Third Party Advisory
http://www.securitytracker.com/id/1034869Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2892-1Third Party Advisory
https://access.redhat.com/errata/RHSA-2016:1425Third Party Advisory
https://bto.bluecoat.com/security-advisory/sa115Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1302588Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201606-06Third Party Advisory
https://support.apple.com/kb/HT212818Third Party Advisory

Timeline

Published: Feb 15, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-0746?

How severe is CVE-2016-0746?

CVE-2016-0746 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 8.63% probability of exploitation in the next 30 days.

How do I fix CVE-2016-0746?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-0746?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST