UBUNTU-CVE-2025-2817: firefox Ubuntu

CVSS: UnknownPublished

Published 29-04-2025Last modified 04-02-2026

Open JSON

Vulnerability summary

UBUNTU-CVE-2025-2817 is a vulnerability in firefox Ubuntu with no CVSS score yet.

Overall risk

0/100

0100

Minimal · default modelHow is this calculated?

CVSS score

Not scored

010

No CVSS score recorded

EPSS score

Not scored

0%100%

No EPSS score yet

KEVNot listedIn no KEV catalog

RansomwareNone recordedNo known use recorded

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1

CVE-2025-2817

Timeline

29-04-2025
PublishedVulnerability first disclosed.
04-02-2026
Last modifiedVulnerability information updated.

Description

Mozilla Firefox's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird ESR < 128.10.

CVSS metrics

Risk metrics not yet published.

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu9 products

firefoxAll versions (No fix recorded)
mozjs102All versions (No fix recorded)
mozjs115All versions (No fix recorded)
mozjs38All versions (No fix recorded)
mozjs52All versions (No fix recorded)