CVE-2026-112281
libaribb24 through 1.0.3 Stack Buffer Overflow via decoder_handle_csi
nkoriyama aribb24
CVSS
6.9MediumExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 19 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.20%Chance of exploitation activity in the next 30 days, higher than 8% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
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.
Text from CVE List
Affected versions 1
- aribb24affected: all versions through 1.0.3CVE List
References 4
- hackmd.io/@haindpwn/aribb24-caption-data-unit-and-csi-oob-writeAdvisoryvia CVE List
- vulncheck.com/advisories/libaribb24-through-1.0.3-stack-buffer-overflow-via-decoder-handle-csiAdvisoryvia CVE List
- hackmd.io/@haindpwn/cve-2026-112280-112281-aribb24-caption-data-unit-and-csi-oob-writeExploitvia CVE List
- github.com/nkoriyama/aribb24/blob/v1.0.3/src/decoder.cReferencevia CVE List