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Fencer Intel
high 7.8

CVE-2016-1247 json

The nginx package before 1.6.2-5+deb8u3 on Debian jessie, the nginx packages before 1.4.6-1ubuntu3.6 on Ubuntu 14.04 LTS, before 1.10.0-0ub…

published 2016-11-29 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-2346

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.9%
EPSS 4.9% chance of exploitation in 30 days, percentile 92%
public exploits
1
Exploit-DB

Summary

The nginx package before 1.6.2-5+deb8u3 on Debian jessie, the nginx packages before 1.4.6-1ubuntu3.6 on Ubuntu 14.04 LTS, before 1.10.0-0ubuntu0.16.04.3 on Ubuntu 16.04 LTS, and before 1.10.1-0ubuntu1.1 on Ubuntu 16.10, and the nginx ebuild before 1.10.2-r3 on Gentoo allow local users with access to the web server user account to gain root privileges via a symlink attack on the error log.

Patch / fix

  • nginx Debian 14, Debian 13, Debian 12 1.10.2-1

debian advisories DEBIAN-CVE-2016-1247

  • nginx Ubuntu 14.04 LTS 1.4.6-1ubuntu3.6
  • nginx Ubuntu 16.04 LTS 1.10.0-0ubuntu0.16.04.3

ubuntu advisories UBUNTU-CVE-2016-1247

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • nginx Arch Linux 1.10.2-3
  • nginx-mainline Arch Linux 1.11.8-2

arch linux advisories AVG-138AVG-139

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-1247 updated cvss 7.4

nginx: Local privilege escalation via log files

  • Red Hat Enterprise Linux 9 nginx, nginx-core, nginx-mod-mail, nginx-filesystem, nginx-mod-stream, nginx-all-modules, +3 more
    affected: no fix available
  • Red Hat Software Collections nginx16-nginx, rh-nginx18-nginx
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-19-155-01 updated cvss 7.8

PHOENIX CONTACT PLCNext AXC F 2152

  • Phoenix Contact AXC F 2152 2404267 version 1.x, 1046568 (Starterkit) version 1.x
    affected: vendor fix, mitigation “Phoenix Contact recommends affected users update to firmware release 2019.0 LTS or later, update to PLCNext Engineer release 2019.0 LTS or later, and apply the following specific mitigations below:” phoenixcontact.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

  1. First public exploit (EDB-40768)
  2. Published

Exploit prediction

4.86% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-40768 Nginx (Debian Based Distros + Gentoo) - 'logrotate' Local Privilege Escalation local, 2016-11-16
  • youtube.com https://www.youtube.com/watch?v=aTswN1k1fQs referenced PoC, tagged "exploit" by a source, unverified
  • legalhackers.com https://legalhackers.com/advisories/Nginx-Exploit-Deb-Root-PrivEsc-CVE-2016-1247.html referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/139750/Nginx-Debian-Based-Distros-Root-Privilege-Escalation.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.