strukturag libde265 up to 1.1.0 integer overflow

Summaryinfo

A vulnerability was found in strukturag libde265 up to 1.1.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality. Executing a manipulation can lead to integer overflow. This vulnerability appears as CVE-2026-54241. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in strukturag libde265 up to 1.1.0. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.1.1 use signed 32-bit arithmetic to calculate the sample adaptive offset input-buffer size, allowing a crafted HEVC stream with large dimensions and 16-bit luma samples to cause an integer overflow, an undersized allocation, and an out-of-bounds heap read that may expose heap data in decoded output or crash the decoder. Version 1.1.1 contains a patch.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-54241 since 06/12/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.1.1 eliminates this vulnerability.

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Productinfo

Vendor

• strukturag

Name

• libde265

Version

• 1.0
• 1.1.0

License

• open-source

Website

• Product: https://github.com/strukturag/libde265/

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