Vulnerability · Published Apr 14, 2026 · Assigned by adobe

CVE-2026-27303Adobe Connect | Deserialization of Untrusted Data (CWE-502)

Critical 9.6

In plain English

A critical-severity unsafe deserialization in Adobe Connect from Adobe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)9.6Critical

Exploit odds (30 days)0.6%top 50.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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. 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 products (as reported)

Vendor	Product	Versions
Adobe	Adobe Connect	0 – through 12.10
Adobe	Adobe Connect Desktop Application	0 – through 2025.3

Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

References

https://helpx.adobe.com/security/products/connect/apsb26-37.html vendor-advisory