CVE-2026-34659CWE-502insecure-deserialization

CVE-2026-34659

Critical · published May 12, 2026

CVSS v3.1
9.6
EPSS
2%
Percentile
79.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01872 · 79.2th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-05-12T23:16Z
Affected products (2)
ProductVersionsFixed in
adobe/connect_desktop_application≤ 2025.8.157—
adobe/connect_desktop_applicationall versions—
References (1)
EPSS history
Timeline
  • 12 MAY 18:35Z
    Adobe Connect | Deserialization of Untrusted Data (CWE-502)
    cvelistv5