CVE-2026-112281
libaribb24 through 1.0.3 Stack Buffer Overflow via decoder_handle_csi
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-121 |
| Vendor | nkoriyama |
| Product | aribb24 |
| Published | Oct 19, 2026 |
| Last Updated | Oct 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Affected Versions
nkoriyama / aribb24
0 ≤ 1.0.3
References
hackmd.io: https://hackmd.io/@haindpwn/aribb24-caption-data-unit-and-csi-oob-write github.com: https://github.com/nkoriyama/aribb24/blob/v1.0.3/src/decoder.c vulncheck.com: https://www.vulncheck.com/advisories/libaribb24-through-1.0.3-stack-buffer-overflow-via-decoder-handle-csi hackmd.io: https://hackmd.io/@haindpwn/cve-2026-112280-112281-aribb24-caption-data-unit-and-csi-oob-write
Credits
HaiND from the Post and Telecommunication Institute of Technology