CVE-2016-4975

unknown
Published — · Modified —
CVSS v3
CVSS v2
VIR risk

Description

Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made in 2.4.25 and 2.2.32 which prohibit CR or LF injection into the "Location" or other outbound header key or value. Fixed in Apache HTTP Server 2.4.25 (Affected 2.4.1-2.4.23). Fixed in Apache HTTP Server 2.2.32 (Affected 2.2.0-2.2.31).

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-4975.html

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-4975

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed2.4.25-1
debian debianbullseyefixed2.4.25-1
debian debianforkyfixed2.4.25-1
debian debiansidfixed2.4.25-1
debian debiantrixiefixed2.4.25-1
suse slesaffected

References

Verify integrity in audit chain (admin only). AS-IS.