Vulnerability Description
An issue was discovered in Dolby UDC 4.5 through 4.13. A crash of the DD+ decoder process can occur when a malformed DD+ bitstream is processed. When Evolution data is processed by evo_priv.c from the DD+ bitstream, the decoder writes that data into a buffer. The length calculation for a write can overflow due to an integer wraparound. This can lead to the allocated buffer being too small, and the out-of-bounds check of the subsequent write to be ineffective, leading to an out-of-bounds write.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://professional.dolby.com/siteassets/pdfs/dolby-security-advisory-CVE-2025-
- https://project-zero.issues.chromium.org/issues/428075495
- https://projectzero.google/2026/01/pixel-0-click-part-1.html
FAQ
What is CVE-2025-54957?
CVE-2025-54957 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue was discovered in Dolby UDC 4.5 through 4.13. A crash of the DD+ decoder process can occur when a malformed DD+ bitstream is processed. When Evolution data is processed by evo_priv.c from the...
How severe is CVE-2025-54957?
CVE-2025-54957 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2025-54957?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.