CVE-2026-75686

Adobe Connect contains an improper input validation vulnerability (CWE-20) that could allow arbitrary code execution in the context of the current user. Exploitation requires user interaction: a victim must click a maliciously crafted URL or interact with a compromised web page, which then triggers the flaw with a changed scope, indicated a browser/client-side impact boundary. A successful attacker gains the ability to execute arbitrary code with the victim's privileges, though availability is not impacted per the CVSS vector (9.3, critical; network vector, low complexity, no privileges required). Both users of Adobe's hosted Connect service and organizations running on-premises Adobe Connect deployments are potentially affected, since the vulnerable component sits in the meeting/client experience. There is no known public proof of concept, and the flaw is not listed in CISA's Known Exploited Vulnerabilities catalog, so exploitation status is currently none known.

What to do: Check Adobe's latest security bulletin for Adobe Connect and apply the patched version to all on-premises deployments as soon as the fix is released; hosted-service customers should verify Adobe has rolled out the patch and update any local Connect client/browser components. Because exploitation requires a victim to click a malicious link, remind users to join meetings only via URLs from known organizers. Monitor logs for unusual URL parameters or unexpected client-side behavior on meeting entry.