CVE-2026-88914

CVE CVE-2026-88914EUVD EUVD-2026-75905Published 2026-09-11T01:48:43.000ZLast changed 2026-09-11T14:15:50.000ZCVSS 4.4

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Red Hat — Red Hat Enterprise Linux 10
• Red Hat — Red Hat Enterprise Linux 6
• Red Hat — Red Hat Enterprise Linux 7
• Red Hat — Red Hat Enterprise Linux 8
• Red Hat — Red Hat Enterprise Linux 9

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Red Hat — Red Hat Enterprise Linux

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.