CVE-2025-14332
published 2025-12-09CVE-2025-14332: Memory safety bugs present in Firefox 145 and Thunderbird 145. Some of these bugs showed evidence of memory corruption and we presume that with enough effort…
PriorityP342high7.3CVSS 3.1
AVNACLPRNUINSUCLILAL
EPSS
0.27%
18.8th percentile
Memory safety bugs present in Firefox 145 and Thunderbird 145. 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 was fixed in Firefox 146 and Thunderbird 146.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 146.0-1 (sid) | firefox 146.0-1 (sid) |
| mozilla | firefox | < 146.0 | 146.0 |
| mozilla | firefox | — | — |
| mozilla | thunderbird | < 146.0 | 146.0 |
CVSS provenance
nvdv3.17.3HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
osv7.3HIGH
vendor_debian7.3HIGH
vendor_redhat7.3HIGH
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Red Hat
firefox: Memory safety bugs fixed in Firefox 146 and Thunderbird 146
vendor_redhat·2025-12-09·CVSS 7.3
CVE-2025-14332 [HIGH] firefox: Memory safety bugs fixed in Firefox 146 and Thunderbird 146
firefox: Memory safety bugs fixed in Firefox 146 and Thunderbird 146
Memory safety bugs present in Firefox 145 and Thunderbird 145. 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 < 146 and Thunderbird < 146.
A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Memory safety bugs.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox (Red Hat Enterprise Linux 10) - Not affected
Package: rhel10/firefox-flatpak (Red Hat Enterprise Linux 10) - Not affected
Package: firefox (Red Hat Enterprise Linux 6) - Not
Debian
CVE-2025-14332: firefox - Memory safety bugs present in Firefox 145 and Thunderbird 145. Some of these bug...
vendor_debian·2025·CVSS 7.3
CVE-2025-14332 [HIGH] CVE-2025-14332: firefox - Memory safety bugs present in Firefox 145 and Thunderbird 145. Some of these bug...
Memory safety bugs present in Firefox 145 and Thunderbird 145. 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 < 146 and Thunderbird < 146.
Scope: local
sid: resolved (fixed in 146.0-1)
Mozilla
Mozilla Foundation Security Advisory 2025-95: CVE-2025-14332
vendor_mozilla·CVSS 7.3
CVE-2025-14332 [HIGH] Mozilla Foundation Security Advisory 2025-95: CVE-2025-14332
Mozilla Foundation Security Advisory 2025-95
CVE: CVE-2025-14332
Product: Thunderbird
Impact: moderate
Fixed in: Thunderbird 146
Mozilla
Mozilla Foundation Security Advisory 2025-92: CVE-2025-14332
vendor_mozilla·CVSS 7.3
CVE-2025-14332 [HIGH] Mozilla Foundation Security Advisory 2025-92: CVE-2025-14332
Mozilla Foundation Security Advisory 2025-92
CVE: CVE-2025-14332
Product: Firefox
Impact: moderate
Fixed in: Firefox 146
GHSA
GHSA-2ghp-fh92-8w9r: Memory safety bugs present in Firefox 145 and Thunderbird 145
ghsa_unreviewed·2025-12-09
CVE-2025-14332 [HIGH] CWE-787 GHSA-2ghp-fh92-8w9r: Memory safety bugs present in Firefox 145 and Thunderbird 145
Memory safety bugs present in Firefox 145 and Thunderbird 145. 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 < 146.
OSV
CVE-2025-14332: Memory safety bugs present in Firefox 145 and Thunderbird 145
osv·2025-12-09·CVSS 7.3
CVE-2025-14332 [HIGH] CVE-2025-14332: Memory safety bugs present in Firefox 145 and Thunderbird 145
Memory safety bugs present in Firefox 145 and Thunderbird 145. 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 < 146 and Thunderbird < 146.
No detection rules found.
No public exploits indexed.
Wiz
CVE-2025-14332 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 7.3
CVE-2025-14332 [HIGH] CVE-2025-14332 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2025-14332 :
NixOS vulnerability analysis and mitigation
Memory safety bugs present in Firefox 145 and Thunderbird 145. 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 < 146 and Thunderbird < 146.
Source : NVD
## 7.3
Score
Published December 9, 2025
Severity HIGH
CNA Score 7.3
Affected Technologies
NixOS
Mozilla Firefox
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 16.9
Exploitation Probability (EPSS) 0.1
Affected packages and libraries
cpe:2.3:a:mozilla:firefox
cpe:2.3:a:mozilla:thunderbird
Sources
Homebrew Severity HIGH Has F
Bugzilla
CVE-2025-14332 firefox: Memory safety bugs fixed in Firefox 146 and Thunderbird 146
bugzilla·2025-12-09·CVSS 7.3
CVE-2025-14332 [HIGH] CVE-2025-14332 firefox: Memory safety bugs fixed in Firefox 146 and Thunderbird 146
CVE-2025-14332 firefox: Memory safety bugs fixed in Firefox 146 and Thunderbird 146
Memory safety bugs present in Firefox 145 and Thunderbird 145. 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 < 146.
2025-12-09
Published