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Fencer Vulns
high 7.5

CVE-2016-9179 json

lynx: It was found that Lynx doesn't parse the authority component of the URL correctly when the host name part ends with '?', and could in…

published 2016-12-22 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-9995

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

Summary

lynx: It was found that Lynx doesn't parse the authority component of the URL correctly when the host name part ends with '?', and could instead be tricked into connecting to a different host.

Patch / fix

  • lynx Debian 14, Debian 13, Debian 12 2.8.9dev11-1

debian advisories DEBIAN-CVE-2016-9179

  • lynx Ubuntu Pro 16.04 LTS 2.8.9dev8-4ubuntu1+esm1

ubuntu advisories UBUNTU-CVE-2016-9179

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

  • lynx SLE Software Development Kit 11 SP4 2.8.6-145.1

suse advisories SUSE-SU-2017:0599-1

  • lynx openSUSE Tumbleweed 2.9.0~dev.9-1.2

opensuse advisories openSUSE-SU-2024:11033-1

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-2016-9179 updated cvss 5.4

lynx: Invalid URL parsing of pages containing '?'

  • Red Hat Enterprise Linux 5 lynx Red Hat Enterprise Linux 6 lynx Red Hat Enterprise Linux 7 lynx
    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

Exploit prediction

2.00% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns 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.