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Fencer Vulns
high 8.8

CVE-2023-37212 json

Memory safety bugs present in Firefox 114.

published 2023-07-05 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-41132

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits
0
none known

Summary

Memory safety bugs present in Firefox 114. 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 < 115.

Patch / fix

  • Mozilla Firefox 115
  • firefox Ubuntu 20.04 LTS 115.0+build2-0ubuntu0.20.04.3

ubuntu advisories UBUNTU-CVE-2023-37212

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-branding-SLE SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +11 more 115-150200.9.13.1
  • MozillaFirefox SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +11 more 115.0-150200.152.93.1
  • MozillaFirefox-branding-SLE SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +5 more 115-35.12.2
  • MozillaFirefox SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +6 more 115.0-112.165.1
  • MozillaFirefox-branding-SLE SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS 115-150000.4.25.1
  • MozillaFirefox SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS 115.0-150000.150.91.1

suse advisories SUSE-SU-2023:2886-1SUSE-SU-2023:2850-1SUSE-SU-2023:2849-1

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 115.0-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:13037-1

  • firefox-esr Alpine 3.23, Alpine 3.22, Alpine 3.21 +3 more 115.0-r0

alpine advisories ALPINE-CVE-2023-37212

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

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 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.