SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAwaiting Analysis

CVE-2026-46471

While parsing an MP4 file, the isomp4 plugin's qtdemux_parse_uuid function may read past the end of a heap-allocated buffer, allowing an attacker to disclose heap memory contents.

MEDIUM 5.5EPSS 0.19%

Does this matter?

Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.

Description

An issue was discovered in GStreamer gst-plugins-good before 1.28.2. While parsing an MP4 file, the isomp4 plugin's qtdemux_parse_uuid function may read past the end of a heap-allocated buffer, allowing an attacker to disclose heap memory contents.

CVSS 3.1
5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
0.19% probability · 8th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-126
Source
cve@mitre.org
EPSS trend
0%3%5%17 October 2026: 0.15%26 October 2026: 0.19%17 October 202626 October 2026

EPSS moved from 0.2% on 17 October 2026 to 0.2% on 26 October 2026.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.