Is CVE-2026-121353 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-121353 being exploited in the wild.

How severe is CVE-2026-121353?

Critical severity, with a CVSS score of 10, published 10 November 2026.

Which products and versions are affected?

Adobe Connect 12.12 and earlier.

Is there a fix for CVE-2026-121353?

Yes: fixed in 12.12.a, 12.11.i, 12.10.f, 12.9.a, 12.8.a. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-121353 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-121353?

Check whether you run Adobe Connect at an affected version. 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.

CVE-2026-121353: Adobe Connect CRLF injection

CVE-2026-121353 · Severity: critical · CVSS 10 · Published 2026-11-10

Adobe Connect is a web conferencing platform used for remote meetings and collaboration. A CRLF injection vulnerability in the platform allows attackers to manipulate application behavior and potentially gain unauthorized access or escalate privileges without user interaction. The vulnerability affects all Connect versions up to 12.12 and requires immediate patching to prevent account takeover and unauthorized system access.

Technologies: Adobe Connect. Vendors: Adobe.

Quick answers

Is CVE-2026-121353 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-121353 being exploited in the wild.
How severe is CVE-2026-121353?: Critical severity, with a CVSS score of 10, published 10 November 2026.
Which products and versions are affected?: Adobe Connect 12.12 and earlier.
Is there a fix for CVE-2026-121353?: Yes: fixed in 12.12.a, 12.11.i, 12.10.f, 12.9.a, 12.8.a. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-121353 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-121353?: Check whether you run Adobe Connect at an affected version. 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.

How to fix

Fixed in: 12.12.a, 12.11.i, 12.10.f, 12.9.a, 12.8.a

Technical details

CVE-2026-121353 is an improper neutralization of CRLF sequences (CWE-93) in Adobe Connect that allows privilege escalation. The vulnerability is remotely exploitable without authentication or user interaction, making it highly dangerous in network-accessible deployments. A fix is available in patched versions 12.12.a, 12.11.i, 12.10.f, 12.9.a, and 12.8.a.

Affected products

Adobe Connect 12.12 and earlier

Timeline

2026-11-10: disclosed

References

https://www.adobe.com/trust/security/products/connect/apsb26-191.html

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