CVE-2026-3845 — Heap-based Buffer Overflow in Mozilla Firefox

CWE-122 — Heap-based Buffer Overflow6 documents6 sources
Severity
8.8HIGHNVD
EPSS
0.0%
top 85.95%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Mozilla Firefox
Timeline
PublishedMar 10

Description

Heap buffer overflow in the Audio/Video: Playback component in Firefox for Android. This vulnerability was fixed in Firefox 148.0.2.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages1 packages

▶NVDmozilla/firefox< 148.0.2

🔴Vulnerability Details

2
CVEList
Heap buffer overflow in the Audio/Video: Playback component in Firefox for Android↗2026-03-10
▶
GHSA
GHSA-9c2f-qj2j-769f: Heap buffer overflow in the Audio/Video: Playback component in Firefox for Android↗2026-03-10
▶

📋Vendor Advisories

2
Debian
CVE-2026-3845: firefox - Heap buffer overflow in the Audio/Video: Playback component in Firefox for Andro...↗2026
▶
Mozilla
Mozilla Foundation Security Advisory 2026-19: CVE-2026-3845↗
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-3845 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-3845 — Heap-based Buffer Overflow in Mozilla | cvebase