CVE-2023-29539

HIGH

Firefox < 112.0 - Reflected File Download via Content-Disposition Filename Truncation

Title source: llm
STIX 2.1

Description

When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character. This could have led to reflected file download attacks potentially tricking users to install malware. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

Scores

CVSS v3 8.8
EPSS 0.0022
EPSS Percentile 44.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-476
Status published
Products (4)
mozilla/firefox < 112.0 (2 CPE variants)
mozilla/firefox_esr < 102.10
mozilla/focus < 112.0
mozilla/thunderbird < 102.10
Published Jun 02, 2023
Tracked Since Feb 18, 2026