CVE-2025-5264
4.8
MEDIUM
CVSS 3.1
EPSS 0.13%
Description
Due to insufficient escaping of the newline 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 vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.
How to fix CVE-2025-5264
To remediate CVE-2025-5264, upgrade the affected package to a fixed version below.
- —upgrade to 128.11.0esr-1~deb11u1 or later
- —upgrade to 1:128.11.0esr-1~deb11u1 or later
Is CVE-2025-5264 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 128.11.0esr-1~deb11u1
- from 0, < 1:128.11.0esr-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L |