CVE-2026-34659

CriticalCVSS 9.6/10Last modified Oct 26, 2026

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.

Metrics

CVSS 3.1 9.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-502

Affected software

VendorProductVersions
AdobeAdobe Connect<= 12.11
AdobeAdobe Connect Desktop Application<= 2025.9.15 (Win), 2025.8.157 (Mac)

References

Timeline

Published
May 12, 2026
Last modified
Oct 26, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-34665.4Insufficient sanitization of dashboard dashlet title links in Checkmk 2.2.0 (EOL), Checkmk 2.3.0 before 2.3.0p46, Checkmk 2.4.0 before 2.4.0CVE-2026-346609.3Adobe Connect versions 2025.9.15, 2025.8.157 and earlier are affected by an Incorrect Authorization vulnerability that could result in arbitCVE-2026-346617.8Illustrator versions 29.8.6, 30.3 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execuCVE-2026-346625.5Illustrator versions 29.8.6, 30.3 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application dCVE-2026-346635.5Illustrator versions 29.8.6, 30.3 and earlier are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitiveCVE-2026-346646.3Substance3D - Designer versions 15.1.0 and earlier are affected by an Improper Limitation of a Pathname to a Restricted Directory ('Path TraCVE-2026-346657.5CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Uncontrolled Resource Consumption vulnerabilityCVE-2026-346666.2CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Improper Input Validation vulnerability that coCVE-2026-346676.2CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Integer Underflow (Wrap or Wraparound) vulnerabCVE-2026-346686.2CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Improper Input Validation vulnerability that coCVE-2026-346696.2CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Improper Input Validation vulnerability that coCVE-2026-346706.2CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Improper Input Validation vulnerability that co
CVE-2026-34659: Critical severity, CVSS 9.6 | Vulnix