When closed or sent to the background, Firefox for Android would not properly record and persist HSTS settings.<br>*Note: This issue only a…

published 2022-12-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-34220

cvss: 6.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits: 0; none known

When closed or sent to the background, Firefox for Android would not properly record and persist HSTS settings.<br>*Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 100.

Patch / fix

fixed in 1 distros 2

Mozilla Firefox 100

opensuse alpine

firefox-esr openSUSE Tumbleweed 128.5.1-1.1
MozillaFirefox openSUSE Tumbleweed 100.0-1.1

opensuse advisories openSUSE-SU-2024:14572-1 openSUSE-SU-2024:12044-1

firefox Alpine 3.23, Alpine 3.22, Alpine 3.21 +5 more 100.0-r0
librewolf Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 100.0-r0

alpine advisories ALPINE-CVE-2022-29910

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 18 mo ago (2025-04-16)

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=1757138 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

Mozilla Firefox

Classification

Weakness

CWE-601 URL Redirection to Untrusted Site

References

bugzilla.mozilla.org /show_bug.cgi?id=1757138
exploit, issue-tracking, vendor-advisory
mozilla.org /security/advisories/mfsa2022-16/
vendor-advisory

Sources

CVE List CVE-2022-29910
NVD CVE-2022-29910

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.

Summary