Deserialization in Adobe Connect
CVE-2026-34615
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.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.018 (77.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.018 · change: +0.011
Affected products
Weakness classification (CWE)
References
- helpx.adobe.com/security/products/connect/apsb26-37.html (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-34615?
- CVE-2026-34615 is a critical-severity vulnerability in Adobe Connect, classified under Deserialization of Untrusted Data. CVSS score: 9.3/10. Published 2026-04-14.
- How severe is CVE-2026-34615?
- Critical severity. CVSS v3 base score is 9.3 out of 10.