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Fencer Vulns
high 8.8

CVE-2022-22752 json

Mozilla developers Christian Holler and Jason Kratzer reported memory safety bugs present in Firefox 95.

published 2022-12-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-27895

cvss
8.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

Mozilla developers Christian Holler and Jason Kratzer reported memory safety bugs present in Firefox 95. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 96.

Patch / fix

  • Mozilla Firefox 96
  • firefox Ubuntu 18.04 LTS 96.0+build2-0ubuntu0.18.04.1
  • firefox Ubuntu 20.04 LTS 96.0+build2-0ubuntu0.20.04.1
  • firefox Ubuntu 22.04 LTS 96.0+build2-0ubuntu1

ubuntu advisories UBUNTU-CVE-2022-22752

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

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 96.0-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:11732-1

  • firefox Alpine 3.23, Alpine 3.22, Alpine 3.21 +5 more 97.0-r0
  • librewolf Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 97.0-r0

alpine advisories ALPINE-CVE-2022-22752

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
none
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Mozilla Firefox

Classification

Weakness

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.