SB2026052508 - Multiple vulnerabilities in Adobe Media Encoder



SB2026052508 - Multiple vulnerabilities in Adobe Media Encoder

Published: May 25, 2026

Security Bulletin ID SB2026052508
CSH Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2026-34639)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to out-of-bounds write in Adobe Media Encoder when processing crafted content. A remote attacker can trick the victim into opening crafted content to execute arbitrary code.

User interaction is required to open crafted content.


2) Integer overflow (CVE-ID: CVE-2026-34640)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to integer overflow or wraparound in Adobe Media Encoder when processing crafted content. A remote attacker can trick the victim into opening crafted content to execute arbitrary code.

User interaction is required to open crafted content.


Remediation

Install update from vendor's website.