What is CVE-2026-89898?

CVE-2026-89898 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-09-16.

How severe is CVE-2026-89898?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Linux

CVE-2026-89898

In the Linux kernel, the following vulnerability has been resolved: media: cec: extron-da-hd-4k-plus: add sanity check Add check to prevent overflowing msg.msg[] in case the incoming data is malformed.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 6.12

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67
416baaa9-dc9f-4396-8d5f-8c081fb06d67

Frequently asked questions

What is CVE-2026-89898?: CVE-2026-89898 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2026-09-16.
How severe is CVE-2026-89898?: High severity. CVSS v3 base score is 8.8 out of 10.