CVE-2026-34659

Adobe Connect | Deserialization of Untrusted Data (CWE-502)

Published May 12, 2026 CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Adobe connect Desktop Application
CPEs cpe:2.3:a:adobe:connect_desktop_application:*:*:*:*:*:macos:*:*
cpe:2.3:a:adobe:connect_desktop_application:2025.9.15:*:*:*:*:windows:*:*
Vendors & Products Adobe connect Desktop Application
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Adobe
Adobe adobe Connect
Vendors & Products Adobe
Adobe adobe Connect
Type Values Removed Values Added
Description 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.
Title Adobe Connect | Deserialization of Untrusted Data (CWE-502)
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
adobe
Published
Updated
Aug 27, 2026, 10:24 PM
Reserved
Mar 30, 2026, 5:30 PM
Status
Analyzed
Published
May 12, 2026, 7:16 PM
Modified
Oct 26, 2026, 6:10 PM