What is CVE-2026-112280?

CVE-2026-112280 is a medium-severity vulnerability in Nkoriyama Aribb24, classified under Heap-based Buffer Overflow. CVSS score: 6.1/10. Published 2026-10-19.

How severe is CVE-2026-112280?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Buffer overflow in Nkoriyama Aribb24

CVE-2026-112280

libaribb24 (aribb24) through 1.0.3 contains a heap-based buffer overflow vulnerability in src/parser.c that allows attackers to corrupt heap memory via an oversized caption data unit. Attackers can supply a crafted caption PES packet in a media file or broadcast stream, processed through arib_parse_pes(), to crash FFmpeg or VLC and possibly corrupt further memory.

Vulnerability class: Buffer Overflow

Published 2026-10-19 · last modified 2026-10-19.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/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

Nkoriyama Aribb24

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

github.com/nkoriyama/aribb24/blob/v1.0.3/src/parser.c (technical-description)
hackmd.io/@haindpwn/aribb24-caption-data-unit-and-csi-oob-write (third-party-advisory)
www.vulncheck.com/advisories/libaribb24-aribb24-through-1.0.3-heap-buffer-overf… (third-party-advisory)

Frequently asked questions

What is CVE-2026-112280?: CVE-2026-112280 is a medium-severity vulnerability in Nkoriyama Aribb24, classified under Heap-based Buffer Overflow. CVSS score: 6.1/10. Published 2026-10-19.
How severe is CVE-2026-112280?: Medium severity. CVSS v3 base score is 6.1 out of 10.