CVE-2026-27303

critical

Published 2026-04-14 · Modified 2026-04-28

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

9.6

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.6

Description

Adobe Connect versions 2025.3, 12.10 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page. Scope is changed.

Predictions

Exploit likelihood

96%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

macOS Fixed 1 release

Version	Status	Fixed in
-	Not affected	—

Application impact

Vendor	Product	Versions	Fixed
adobe	connect	`{"endExcluding":"12.11"}`	`12.11`
adobe	connect_desktop_application	`{"endIncluding":"2025.3"}`

References

https://helpx.adobe.com/security/products/connect/apsb26-37.html

CWEs

CWE-502

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.