CVE-2026-112281 json
libaribb24 through 1.0.3 Stack Buffer Overflow via decoder_handle_csi
published 21d ago modified 21d ago also EUVD-2026-104292
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
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.
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Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 21d ago
Exploit prediction
0.20% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- hackmd.io https://hackmd.io/@haindpwn/cve-2026-112280-112281-aribb24-caption-data-unit-and-csi-oob-write referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- nkoriyama aribb24
Classification
- Weakness
-
- CWE-121 Stack-based Buffer Overflow
References
-
hackmd.io
/@haindpwn/cve-2026-112280-112281-aribb24-caption-data-unit-and-csi-oob-write
exploit
-
hackmd.io
/@haindpwn/aribb24-caption-data-unit-and-csi-oob-write
third-party-advisory
-
github.com
/nkoriyama/aribb24/blob/v1.0.3/src/decoder.c
technical-description
-
vulncheck.com
/advisories/libaribb24-through-1.0.3-stack-buffer-overflow-via-decoder-handle-csi
third-party-advisory
Sources
- CVE List CVE-2026-112281
- NVD CVE-2026-112281
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.