CVE-2026-88914
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 4.4
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
- CWE
- CWE-190
- Published
- 2026-09-11
- Last modified
- 2026-09-11
Weakness type
Related vulnerabilities
- CVE-2026-89158 — PCRE2 before 10.48, on 32-bit platforms, has a pcre2_compile_32 integer overflow and resultant...
- CVE-2026-89157 — PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an...
- CVE-2026-16174 — Netskope Endpoint DLP Driver Integer Overflow Leading to Kernel Pool Overflow
- CVE-2026-88035 — Heap buffer overflow via wrapped size check during SASL username canonicalization in MongoDB C Driver
- CVE-2026-85228 — Integer overflow in tensor buffer validation in Deep Java Library
- CVE-2026-88015 — rclone local: crafted Range request against a translated symlink panics (DoS)
- CVE-2026-87823 — zstd-jni 1.1.1 through 1.5.7-13 Out-of-Bounds Read via Direct ByteBuffer Frame-Size Methods
- CVE-2026-56711 — VLC media player 3.0.0 through 3.0.23 Heap Out-of-Bounds Write via Integer Overflow in Picture Allocation