by Kastro
Paper/Archive/CVE-2025-54957

CVE-2025-54957

mitre — An issue was discovered in Dolby UDC 4.5 through 4.13.

EPSS 2%CVSS 9.8
critical.is priorityof 100
45
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 75.7.757 × 2015.1No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refprofessional.dolby.com/siteassets/pdfs/dolby-security-advisory-CVE-2025-54957-Oct-14-25.pdfrefproject-zero.issues.chromium.org/issues/428075495writeupprojectzero.google/2026/01/pixel-0-click-part-1.html