CVE catalog

CVE-2026-14241

Memory safety bugs present in Firefox 152.0.3. 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 c

[CVE catalog]

Severity: Critical · CVSS 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: Jun 30, 2026, 2:16:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.43% · Oct 22, 2026

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Cpe	firefox	Not reported	Not reported	unknown
Opensuse	MozillaFirefox	tumbleweed	`152.0.4-1.1`	fixed
Ubuntu	mozjs52	18.04	`52.3.1-0ubuntu3`	vulnerable
Ubuntu	mozjs52	18.04	`52.3.1-7fakesync1`	vulnerable
Ubuntu	mozjs52	18.04	`52.8.1-0ubuntu0.18.04.1`	vulnerable
Ubuntu	mozjs52	18.04	`52.9.1-0ubuntu0.18.04.1`	vulnerable
Ubuntu	mozjs38	18.04	`38.8.0~repack1-0ubuntu1`	vulnerable
Ubuntu	mozjs38	18.04	`38.8.0~repack1-0ubuntu3`	vulnerable
Ubuntu	mozjs38	18.04	`38.8.0~repack1-0ubuntu4`	vulnerable
Ubuntu	mozjs68	20.04	`68.5.0-1~fakesync`	vulnerable
Ubuntu	mozjs68	20.04	`68.5.0-2~fakesync`	vulnerable
Ubuntu	mozjs68	20.04	`68.6.0-1`	vulnerable
Ubuntu	mozjs68	20.04	`68.6.0-1ubuntu1`	vulnerable
Ubuntu	mozjs52	20.04	`52.9.1-1build1`	vulnerable
Ubuntu	mozjs52	20.04	`52.9.1-1ubuntu3`	vulnerable
Ubuntu	mozjs102	22.04	`102.11.0-0ubuntu0.22.04.1`	vulnerable
Ubuntu	mozjs102	22.04	`102.12.0-0ubuntu0.22.04.1`	vulnerable
Ubuntu	mozjs102	22.04	`102.13.0-0ubuntu0.22.04.1`	vulnerable
Ubuntu	mozjs102	22.04	`102.15.1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	mozjs78	22.04	`78.13.0-1`	vulnerable
Ubuntu	mozjs78	22.04	`78.15.0-2`	vulnerable
Ubuntu	mozjs78	22.04	`78.15.0-4ubuntu1`	vulnerable
Ubuntu	mozjs91	22.04	`91.5.1-0ubuntu1`	vulnerable
Ubuntu	mozjs91	22.04	`91.6.0-1`	vulnerable
Ubuntu	mozjs91	22.04	`91.6.0-2`	vulnerable
Ubuntu	mozjs91	22.04	`91.7.0-2`	vulnerable
Ubuntu	mozjs91	22.04	`91.10.0-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.1.2+build1-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.3.0+build2-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.3.1+build1-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.3.2+build1-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.4.0+build1.1-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.4.0+build2-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.5.0+build1-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.5.1+build1-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.6.1+build1-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.7.0+build1-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.7.0+build2-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.8.0+build2-0ubuntu1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.9.1+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:91.11.0+build2-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:102.2.2+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:102.4.2+build2-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:102.7.1+build2-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:102.8.0+build2-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:102.9.0+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:102.10.0+build2-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:102.11.0+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:102.13.0+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:102.15.0+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:102.15.1+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.3.1+build1-0ubuntu0.22.04.2`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.4.1+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.5.0+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.6.0+build2-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.8.1+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.9.0+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.10.1+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.11.0+build2-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.12.0+build3-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.13.0+build5-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.15.0+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.16.0+build2-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:115.18.0+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:128.12.0+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	thunderbird	22.04	`1:140.7.1+build1-0ubuntu0.22.04.1`	vulnerable
Ubuntu	mozjs102	24.04	`102.15.1-1`	vulnerable
Ubuntu	mozjs102	24.04	`102.15.1-3ubuntu2`	vulnerable
Ubuntu	mozjs115	24.04	`115.3.0-0ubuntu1`	vulnerable
Ubuntu	mozjs115	24.04	`115.4.0-2`	vulnerable
Ubuntu	mozjs115	24.04	`115.5.0-1`	vulnerable
Ubuntu	mozjs115	24.04	`115.6.0-1`	vulnerable
Ubuntu	mozjs115	24.04	`115.7.0-4`	vulnerable
Ubuntu	mozjs115	24.04	`115.8.0-1`	vulnerable
Ubuntu	mozjs115	24.04	`115.9.0-1`	vulnerable
Ubuntu	mozjs115	24.04	`115.9.0-1build1`	vulnerable
Ubuntu	mozjs115	24.04	`115.10.0-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Opensuse	MozillaFirefox	rpm	tumbleweed	`152.0.4-1.1`	Not reported	OPENSUSE-SU-2026:11229-1	Not reported

OpenFactory catalog packages

[openSUSE Tumbleweed]

[MozillaFirefox-branding-upstream]Unknown
Source package: [MozillaFirefox]
Details (1)
- 154.0-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 152.0.4-1.1
  Version impact unknown
  nvd · MozillaFirefox · opensuse · tumbleweed
[MozillaFirefox-devel]Unknown
Source package: [MozillaFirefox]
Details (1)
- 154.0-1.1 · noarch · tumbleweed
  Unknown · Fixed: 152.0.4-1.1
  Version impact unknown
  nvd · MozillaFirefox · opensuse · tumbleweed
[MozillaFirefox-translations-common]Unknown
Source package: [MozillaFirefox]
Details (1)
- 154.0-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 152.0.4-1.1
  Version impact unknown
  nvd · MozillaFirefox · opensuse · tumbleweed
[MozillaFirefox-translations-other]Unknown
Source package: [MozillaFirefox]
Details (1)
- 154.0-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 152.0.4-1.1
  Version impact unknown
  nvd · MozillaFirefox · opensuse · tumbleweed
[MozillaFirefox]Fixed
Source package: [MozillaFirefox]
Details (1)
- 154.0-1.1 · x86_64 · tumbleweed
  Fixed · Fixed: 152.0.4-1.1
  nvd · MozillaFirefox · opensuse · tumbleweed

Observed: Oct 24, 2026, 4:30:03 AM UTC

References

[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]