CVE-2025-14861
published 2025-12-18CVE-2025-14861: Memory safety bugs present in Firefox 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could…
PriorityP346high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.25%
16.7th percentile
Memory safety bugs present in Firefox 146. 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 146.0.1.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 146.0.1-1 (sid) | firefox 146.0.1-1 (sid) |
| mozilla | firefox | < 146.0.1 | 146.0.1 |
| mozilla | firefox | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
osv8.8HIGH
vendor_debian8.8HIGH
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VulDB
Mozilla Firefox up to 146.0.0 memory corruption (Nessus ID 279186 / WID-SEC-2025-2885)
vuldb·2026-10-07·CVSS 8.8
CVE-2025-14861 [HIGH] Mozilla Firefox up to 146.0.0 memory corruption (Nessus ID 279186 / WID-SEC-2025-2885)
A vulnerability labeled as critical has been found in Mozilla Firefox up to 146.0.0. This issue affects some unknown processing. Executing a manipulation can lead to memory corruption.
This vulnerability is handled as CVE-2025-14861. The attack can be executed remotely. There is not any exploit available.
The affected component should be upgraded.
GHSA
GHSA-ff4q-8rgg-cv6g: Memory safety bugs present in Firefox 146
ghsa_unreviewed·2025-12-18
CVE-2025-14861 [HIGH] CWE-119 GHSA-ff4q-8rgg-cv6g: Memory safety bugs present in Firefox 146
Memory safety bugs present in Firefox 146. 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 < 146.0.1.
OSV
CVE-2025-14861: Memory safety bugs present in Firefox 146
osv·2025-12-18·CVSS 8.8
CVE-2025-14861 [HIGH] CVE-2025-14861: Memory safety bugs present in Firefox 146
Memory safety bugs present in Firefox 146. 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 < 146.0.1.
Debian
CVE-2025-14861: firefox - Memory safety bugs present in Firefox 146. Some of these bugs showed evidence of...
vendor_debian·2025·CVSS 8.8
CVE-2025-14861 [HIGH] CVE-2025-14861: firefox - Memory safety bugs present in Firefox 146. Some of these bugs showed evidence of...
Memory safety bugs present in Firefox 146. 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 < 146.0.1.
Scope: local
sid: resolved (fixed in 146.0.1-1)
Mozilla
Mozilla Foundation Security Advisory 2025-98: CVE-2025-14861
vendor_mozilla·CVSS 8.8
CVE-2025-14861 [HIGH] Mozilla Foundation Security Advisory 2025-98: CVE-2025-14861
Mozilla Foundation Security Advisory 2025-98
CVE: CVE-2025-14861
Product: Firefox
Impact: high
Fixed in: Firefox 146.0.1
No detection rules found.
No public exploits indexed.
2025-12-18
Published