What is CVE-2026-108063?

CVE-2026-108063 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2026-10-09.

How severe is CVE-2026-108063?

Medium severity. CVSS v3 base score is 5.5 out of 10.

NULL pointer dereference in Red Hat Enterprise Linux 10

CVE-2026-108063

A flaw was found in libhangul. When parsing Hanja dictionary files, the library fails to verify that an entry contains a valid value alongside its key. By providing a specially crafted dictionary file to an application that queries it, an attacker can trigger an unexpected application crash, resulting in a Denial of Service (DoS).

Published 2026-10-09 · last modified 2026-10-09.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

Frequently asked questions

What is CVE-2026-108063?: CVE-2026-108063 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2026-10-09.
How severe is CVE-2026-108063?: Medium severity. CVSS v3 base score is 5.5 out of 10.