CVE-2025-54957

An issue was discovered in Dolby UDC 4.5 through 4.13

Critical · published October 20, 2025

CVSS v3.1
9.8
EPSS
2%
Percentile
75.5
In the wild
Unconfirmed
What it is

🚨 A malformed DD+ bitstream can crash the Dolby UDC decoder, causing an out-of-bounds write that could spell disaster! 🔥 Think of this as a delivery truck overloaded with packages. If it tries to dump more than it can carry into a storage facility without checking the capacity, it could spill everything over, causing chaos! This vulnerability allows an attacker to crash the decoder process, potentially leading to unexpected application behavior or even a complete system crash. The consequences could be absolutely devastating, especially in environments relying on audio processing, as it can disrupt services and affect user experience.

Put simply

Think of this as a delivery truck overloaded with packages. If it tries to dump more than it can carry into a storage facility without checking the capacity, it could spill everything over, causing chaos! The flaw arises from an integer overflow in the length calculation during data processing from a malformed DD+ bitstream, allowing for an out-of-bounds write when the allocated buffer isn't checked properly.

What to do

This vulnerability allows an attacker to crash the decoder process, potentially leading to unexpected application behavior or even a complete system crash. The consequences could be absolutely devastating, especially in environments relying on audio processing, as it can disrupt services and affect user experience. Update Dolby UDC to the latest version (post 4.13) immediately to patch the issue. Implement thorough input validation and consider monitoring your systems for any abnormal activity related to DD+ processing. You've got this! Following these steps will help safeguard your systems and reclaim your security hero status! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01595 · 75.5th percentile
Published
2025-10-20T00:00Z
EPSS history
Timeline
  • 20 OCT 00:00Z
    An issue was discovered in Dolby UDC 4.5 through 4.13
    cvelistv5