CVE-2026-34659: Adobe Connect | Deserialization of Untrusted Data (CWE-502)
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-34659?
CVE-2026-34659 is classified as critical due to its potential for arbitrary code execution.
How do I fix CVE-2026-34659?
To mitigate CVE-2026-34659, upgrade Adobe Connect to versions later than 2025.9.15 or 2025.8.157.
What versions of Adobe Connect are affected by CVE-2026-34659?
CVE-2026-34659 affects Adobe Connect versions 2025.9.15, 2025.8.157, and earlier.
What kind of attack does CVE-2026-34659 enable?
CVE-2026-34659 allows attackers to exploit deserialization issues, potentially leading to arbitrary code execution.
Who is at risk from CVE-2026-34659?
Users of Adobe Connect versions affected by CVE-2026-34659 are at risk of their systems being compromised.