Out-of-Bounds Write Vulnerability in Adobe Media Encoder
CVE-2026-34639

7.8HIGH

Key Information:

Vendor

Adobe
Status
Media Encoder
Vendor
CVE Published:
12 May 2026

What is CVE-2026-34639?

Adobe Media Encoder versions 26.0.2, 25.6.4, and earlier versions are susceptible to an out-of-bounds write vulnerability. This flaw may allow an attacker to execute arbitrary code within the context of the current user if the affected user interacts with a malicious file. Mitigation of this vulnerability requires users to avoid opening suspicious files from untrusted sources.

Affected Version(s)

Media Encoder 0 <= 25.6.4

References

https://helpx.adobe.com/security/products/media-encoder/a...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.