Adobe Connect EUVD-2026-29741

Exploitation requires active user interaction: an authenticated Adobe Connect victim must visit a maliciously crafted URL or interact with a compromised/attacker-controlled web page - that click IS the required condition. The attacker themselves needs no authentication (PR:N) and no special Connect configuration is called out, so default deployments of affected Adobe Connect versions (2025.9.15, 2025.8.157 and earlier) are in scope. Limiting factors that reduce realistic risk: the mandatory victim interaction (UI:R) rules out automated mass exploitation (SSVC Automatable: no), impact is confined to the victim's browser/session context rather than the server, and the target must be an affected, unpatched Connect version.

The CVSS 3.1 base score is 9.3 (AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N), which is inflated by the changed scope and high confidentiality/integrity ratings; however, the impact is script execution in the victim's browser context, not server compromise, so 'RCE' in the tags should be read as client-side code execution. Real-world signals temper the raw score: EPSS is only 0.47% (65th percentile), CISA SSVC records Exploitation: none and Automatable: no, and there is no KEV listing and no known POC - no public exploit identified at time of analysis. The requirement for user interaction (UI:R) is a meaningful limiter that prevents mass, automated exploitation. SSVC rates Technical Impact as total, which aligns with full session/account takeover for an individual victim. Net: a genuinely high-severity, defensible-priority patch for Adobe Connect operators, but not an emergency mass-exploitation event - prioritize behind any actively-exploited items. Note the modest conflict worth verifying: the tag says 'RCE' and CVSS marks I:H, yet the description confines impact to in-browser script execution and account/session control.

An attacker crafts a malicious Adobe Connect URL (or seeds a compromised page) that triggers the incorrect authorization flaw and injects attacker-controlled script. When an authenticated Connect user clicks the link, the script runs in their session, allowing the attacker to hijack the session, elevate access, or act on the victim's behalf. No POC is currently known, and the network attack vector with low complexity means only the one-click user interaction stands between the attacker and success.