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Fencer Vulns
critical 9.8

CVE-2022-34485 json

Mozilla developers Bryce Seager van Dyk and the Mozilla Fuzzing Team reported potential vulnerabilities present in Firefox 101.

published 2022-12-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-37440

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

Mozilla developers Bryce Seager van Dyk and the Mozilla Fuzzing Team reported potential vulnerabilities present in Firefox 101. 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 < 102.

Patch / fix

  • Mozilla Firefox 102
  • firefox Ubuntu 18.04 LTS 102.0+build2-0ubuntu0.18.04.1
  • firefox Ubuntu 20.04 LTS 102.0+build2-0ubuntu0.20.04.1

ubuntu advisories UBUNTU-CVE-2022-34485

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

  • MozillaFirefox SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +10 more 102.3.0-150200.152.61.1
  • MozillaFirefox-branding-SLE SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +10 more 102-150200.9.10.1
  • MozillaFirefox SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +6 more 102.2.0-112.130.1
  • MozillaFirefox-branding-SLE SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +5 more 102-35.9.1
  • MozillaFirefox SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +7 more 102.2.0-150000.150.56.1
  • MozillaFirefox-branding-SLE SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +7 more 102-150000.4.22.1

suse advisories SUSE-SU-2022:3396-1SUSE-SU-2022:3273-1SUSE-SU-2022:3272-1

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 102.0.1-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:12184-1

  • firefox Alpine 3.23, Alpine 3.22, Alpine 3.21 +4 more 102.0-r0
  • librewolf Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 102.0-r0

alpine advisories ALPINE-CVE-2022-34485

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
yes
Technical impact
total
Assessed
18 mo ago

Exploit prediction

0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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.