CVE-2026-112281
CVE-2026-112281
libaribb24 (aribb24) through 1.0.3 contains a stack-based buffer overflow vulnerability in decoder_handle_csi() in src/decoder.c that allows attackers to write past a fixed 256-entry array by supplying unbounded CSI parameter bytes. Attackers can embed a caption statement with a CSI introducer and over 256 parameter bytes in media files or broadcast streams to crash FFmpeg or VLC or corrupt the return address.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
Weakness classification (CWE)
References
- github.com/nkoriyama/aribb24/blob/v1.0.3/src/decoder.c (technical-description)
- hackmd.io/@haindpwn/aribb24-caption-data-unit-and-csi-oob-write (third-party-advisory)
- www.vulncheck.com/advisories/libaribb24-through-1.0.3-stack-buffer-overflow-via… (third-party-advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0
Frequently asked questions
- What is CVE-2026-112281?
- CVE-2026-112281 is a medium-severity vulnerability, classified under Stack-based Buffer Overflow. CVSS score: 6.1/10. Published 2026-10-19.
- How severe is CVE-2026-112281?
- Medium severity. CVSS v3 base score is 6.1 out of 10.