Deserialization in Adobe Connect
CVE-2025-27203
Adobe Connect versions 24.0 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could lead to arbitrary code execution by an attacker. Exploitation of this issue does require user interaction and scope is changed.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (68.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.012 · change: +0.002
Affected products
- Adobe Connect — versions 0
- Adobe Connect Desktop Application
Weakness classification (CWE)
References
- helpx.adobe.com/security/products/connect/apsb25-61.html (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-27203?
- CVE-2025-27203 is a critical-severity vulnerability in Adobe Connect, classified under Deserialization of Untrusted Data. CVSS score: 9.6/10. Published 2025-07-08.
- How severe is CVE-2025-27203?
- Critical severity. CVSS v3 base score is 9.6 out of 10.