Quick answers
- Is CVE-2026-121354 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-121354 being exploited in the wild.
- How severe is CVE-2026-121354?
- Critical severity, with a CVSS score of 9.9, published 10 November 2026.
- Which products and versions are affected?
- Adobe Connect 12.12 and earlier.
- Is there a fix for CVE-2026-121354?
- Yes: fixed in Connect 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-2026-121354 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-121354?
- 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: Connect 12.12.a, 12.11.i, 12.10.f, 12.9.a, 12.8.a
Technical details
The vulnerability is an improper limitation of pathname access (CWE-22) in Adobe Connect's file handling logic. It requires authentication (PR:L) but can be exploited over the network without user interaction (AV:N, UI:N). Successful exploitation allows an authenticated attacker to traverse directory structures and read files outside the intended access scope, potentially leading to arbitrary code execution when combined with other system capabilities (S:C scope change).
Affected products
- Adobe Connect 12.12 and earlier
Timeline
- 2026-11-10: disclosed