CVE-2026-88914
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
34/100
Published: 2026-09-11
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Auth
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
None
UI:
Required
S:
Unchanged
C:
Low
I:
None
A:
Low
Description
A flaw was found in GStreamer's gst-plugins-good isomp4 plugin. When processing a specially crafted MP4 or MOV file containing CEA-608 closed-caption data, an integer overflow in 32-bit unsigned arithmetic can bypass a bounds check in the caption parser. This leads to an out-of-bounds heap read of up to 244 bytes, which is then included in the downstream caption output. An attacker could exploit this by tricking a user into opening a malicious media file, potentially resulting in disclosure of adjacent heap memory or application crash.
Weakness Classification (1)
References & Advisories (4)
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT