4.8

CVE-2025-5265: mozilla firefox Command Injection

CVSS: 4.8v3.1MediumModified
AliasesUBUNTU-CVE-2025-5265CGA-x3qp-346g-f287CGA-xqx2-hmrm-4wr4
Published 27-05-2025Last modified 13-04-2026
Open JSON

Vulnerability summary

CVE-2025-5265 is a medium (CVSS 4.8) Command Injection vulnerability in mozilla firefox. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.7% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 12
OPENSUSE-SU-2025-20135-1OPENSUSE-SU-2025:15170-1OPENSUSE-SU-2025:15174-1OPENSUSE-SU-2025:15196-1OPENSUSE-SU-2025:15315-1OPENSUSE-SU-2025:20135-1

Timeline

  1. 27-05-2025
    PublishedVulnerability first disclosed.
  2. 13-04-2026
    Last modifiedVulnerability information updated.

Description

Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. *This bug only affects Firefox for Windows. Other versions of Firefox are unaffected.*. This vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.21%

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

Affected systems

Ubuntu8 products
  • mozjs102All versions (No fix recorded)
  • mozjs115All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
Chainguard2 products
  • firefox< 128.11-r0
  • firefox-esr< 115.24-r0
Mozilla1 product
  • firefox< 115.24.0 | < 139.0 | ≥ 116.0, < 128.11.0
Wolfi1 product
  • firefox< 128.11-r0

4 vendors · 12 products

References

11 links
Show all 11 references