aribb24 up to 1.0.3 Decoder src/decoder.c decoder_handle_csi buffer overflow

Summaryinfo

A vulnerability classified as problematic has been found in aribb24 up to 1.0.3. The affected element is the function decoder_handle_csi of the file src/decoder.c of the component Decoder. The manipulation leads to buffer overflow. This vulnerability is documented as CVE-2026-112281. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in aribb24 up to 1.0.3. It has been rated as problematic. This issue affects the function decoder_handle_csi of the file src/decoder.c of the component Decoder. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at hackmd.io. The identification of this vulnerability is CVE-2026-112281 since 10/19/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/19/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• aribb24

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3

CPE 2.3info

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CPE 2.2info

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