Out-of-Bounds Write Vulnerability in Dolby UDC Software
CVE-2025-54957

9.8CRITICAL

Key Information:

Vendor

Dolby

Vendor
CVE Published:
20 October 2025

Badges

πŸ“ˆ Score: 611πŸ‘Ύ Exploit Exists🟑 Public PoCπŸ“° News Worthy

What is CVE-2025-54957?

CVE-2025-54957 is a significant vulnerability identified in the Dolby UDC software, specifically affecting versions 4.5 through 4.13. Dolby UDC is designed for audio processing, particularly in handling the Dolby Digital Plus (DD+) format, which is widely used in various media applications. The vulnerability stems from an out-of-bounds write issue that occurs when a malformed DD+ bitstream is processed. This issue results from an integer wraparound in the length calculation for a write operation, which can lead to a buffer overflow. Consequently, the decoder may crash, resulting in potential service disruptions or degradation in media playback performance, affecting user experiences and operational functionalities.

Potential impact of CVE-2025-54957

  1. Service Disruption: The immediate effect of this vulnerability is the potential for crashes in the DD+ decoder process, which can interrupt media playback and impact user access to audio content, leading to a degraded user experience.

  2. Security Risks: The out-of-bounds write could potentially be exploited by malicious actors to corrupt memory or execute arbitrary code, placing systems at risk of unauthorized access and compromise.

  3. Reputation Damage: Organizations relying on Dolby UDC for their audio processing needs may face reputational harm if they fail to address this vulnerability, particularly if it leads to service outages or data integrity issues, undermining user trust and confidence.

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Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

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Zero-click Dolby audio bug lets attackers run code on Android and Windows devices

The bug, tracked as CVE-2025-54957, could let attackers run code via audio files.

References

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟑

    Public PoC available

  • πŸ‘Ύ

    Exploit known to exist

  • πŸ“°

    First article discovered by Malwarebytes

  • Vulnerability published

  • Vulnerability Reserved

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