CVE-2026-34659
CRITICALAdobe Connect | Deserialization of Untrusted Data (CWE-502)
Title source: cnaDescription
Adobe Connect versions 2025.9.15, 2025.8.157 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. An attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
https://helpx.adobe.com/security/products/connect/apsb26-50.html
Scores
CVSS v3
9.6
EPSS
0.0374
EPSS Percentile
88.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-502
Status
published
Products (3)
Adobe/Adobe Connect
< 2025.8.157
adobe/connect_desktop_application
2025.9.15
adobe/connect_desktop_application
< 2025.8.157
Published
May 12, 2026
Tracked Since
May 13, 2026