P4Verified

CVE-2025-2817

CVE-2025-2817. CVSS base score 8.8 (HIGH, Source advisory). EPSS 0.00656 (percentile 0.49641), scored 2026-10-04.

Affected technology

firefox · before 115.23.0 (exclusive)
mozilla

firefox · before 138.0 (exclusive)
mozilla

firefox · from 116.0 (inclusive), before 128.10.0 (exclusive)
mozilla

thunderbird · before 128.10.0 (exclusive)
mozilla

thunderbird · from 129.0 (inclusive), before 138.0 (exclusive)
mozilla

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

An attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. Source advisory’s CVSS 3.1 assessment rates confidentiality, integrity and availability impact as high.

Published 2026-10-05 23:10:22.882167+00:00

CWE: CWE-22
CCR priority: 35.4 /100 (P4)
CVSS: 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Source advisory
EPSS: 0.00656 · percentile 0.49641 · 2026-10-04
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-05 23:09:08.830529+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-2817.html