CVE-2026-83964: Adobe Connect improper certificate validation

CVE-2026-83964 · Severity: medium · CVSS 6.2 · Published 2026-09-22

Adobe Connect, a web conferencing and collaboration platform, contains a certificate validation flaw that could allow an attacker to intercept or manipulate encrypted communications. An attacker on the network could exploit this vulnerability to disclose sensitive information from the application's memory without requiring user interaction, potentially exposing session data, credentials, or other confidential content.

Technologies: Adobe Connect, Adobe Connect For Mobile, Apple macOS, Microsoft Windows. Vendors: Adobe, Apple, Microsoft.

Quick answers

Is CVE-2026-83964 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-83964 being exploited in the wild.
How severe is CVE-2026-83964?
Medium severity, with a CVSS score of 6.2, published 22 September 2026.
Which products and versions are affected?
Adobe Connect.
Is there a fix for CVE-2026-83964?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-83964 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-83964?
Check whether you run Adobe Connect, Adobe Connect For Mobile, Apple macOS or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an improper certificate validation issue in Adobe Connect that allows an attacker to perform man-in-the-middle attacks on encrypted connections. No user interaction is required for exploitation, indicating the flaw may be triggered automatically during normal communication. The vulnerability can lead to disclosure of sensitive memory contents on the affected system.

Affected products

  • Adobe Connect

Timeline

  • 2026-09-22: disclosed

References

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