PT-2026-24213 · Mozilla · Firefox

Jon Coppeard · Published 2026-03-10 · Updated 2026-03-19 · CVE-2026-3847

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 148.0.2

Description Memory safety bugs were identified in Firefox 148.0.2. These bugs demonstrate evidence of memory corruption, and it is presumed that, with sufficient effort, they could potentially be exploited to execute arbitrary code.

Recommendations Update Firefox to version 148.0.2 or later.

Fix

DoS

Buffer Overflow

Use After Free

Weakness Enumeration

CWE-119

CWE-416

Related Identifiers

BDU:2026-03322

CVE-2026-3847

OPENSUSE-SU-2026:10324-1

Affected Products

Firefox

References · 22

• https://osv.dev/vulnerability/CVE-2026-3847 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2026-19 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2026-19 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-3847 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-3847 · Security Note
• https://bdu.fstec.ru/vul/2026-03322 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10324-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2026-0518SE47 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-3847 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2026-19/#CVE-2026-3847 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3847 · Security Note
• https://ubuntu.com/security/CVE-2026-3847 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se18-bulletin-2026-0423SE18MD · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2026-0421SE17 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/729796 · Security Note