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VulnerabilityPublished

CVE-2026-88914: Red Hat Enterprise Linux 10 · Integer Overflow or Wraparound

Affects Red Hat Enterprise Linux 10Source CVE Database V5

0

Not known to be exploited · CVSS 4.4 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
4.4Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10gstreamer1-plugins-goodAffected–Fixed in–
Red Hat Enterprise Linux 6gstreamer-plugins-goodAffected–Fixed in–
Red Hat Enterprise Linux 7gstreamer1-plugins-goodAffected–Fixed in–
Red Hat Enterprise Linux 7gstreamer-plugins-goodAffected–Fixed in–
Red Hat Enterprise Linux 8gstreamer1-plugins-goodAffected–Fixed in–
Red Hat Enterprise Linux 9gstreamer1-plugins-goodAffected–Fixed in–

AI-suggested

Until a patch is applied, users should avoid opening untrusted or suspicious MP4 or MOV media files containing closed-caption data.

Description

CVE-2026-88914 is a medium severity vulnerability in the GStreamer gst-plugins-good isomp4 plugin used in Red Hat Enterprise Linux 10. It involves an integer overflow in 32-bit unsigned arithmetic when processing specially crafted MP4 or MOV files containing CEA-608 closed-caption data. This overflow bypasses a bounds check in the caption parser, leading to an out-of-bounds heap read of up to 244 bytes. Exploitation requires user interaction by opening a malicious media file and may result in disclosure of adjacent heap memory or application crash.

References

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