CVE-2026-34615 Adobe Connect | Deserialization of Untrusted Data (CWE-502)

Critical 9.3 Published 14 Apr 2026 Updated 27 Aug 2026

Attackers can execute arbitrary code or take over accounts via deserialization flaws in Adobe Connect, requiring user interaction with malicious links.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-34615?

CVE-2026-34615 is a critical unsafe deserialization vulnerability in Adobe Connect, published on 14 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Adobe Connect versions 2025.3, 12.10 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 inject malicious scripts into a web page, potentially gaining elevated access or control over the victim's account or session. 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.

Weakness: CWE-502

Which versions are affected by CVE-2026-34615?

It affects 2 products.

Products include Adobe Connect, Adobe Connect Desktop Application.

How do I fix CVE-2026-34615?

No fix has been published for CVE-2026-34615 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2026-34615 being exploited?

There is no known exploitation of CVE-2026-34615 in the wild and no public exploit code.

All Adobe Connect vulnerabilities

Sources

Also known as GHSA-577g-xxrf-8j42.