What is CVE-2026-109854?

CVE-2026-109854 is a low-severity vulnerability in Red Hat Enterprise Linux 10, classified under CWE-457. CVSS score: 2.5/10. Published 2026-10-13.

How severe is CVE-2026-109854?

Low severity. CVSS v3 base score is 2.5 out of 10.

Vulnerability in Red Hat Enterprise Linux 10

CVE-2026-109854

A flaw was found in m17n-lib. An attacker who supplies crafted input to an application processing ISO-2022 encoded text can cause the library to read uninitialized memory from the stack. If the application exposes or returns the decoded output, this flaw can result in unexpected behavior and limited information disclosure.

Published 2026-10-13.

CVSS v3 metric

CVSS v3 base score 2.5 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N.

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-457

References

Frequently asked questions

What is CVE-2026-109854?: CVE-2026-109854 is a low-severity vulnerability in Red Hat Enterprise Linux 10, classified under CWE-457. CVSS score: 2.5/10. Published 2026-10-13.
How severe is CVE-2026-109854?: Low severity. CVSS v3 base score is 2.5 out of 10.