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TI-2025-20060 Aliases CVE-2025-27203GHSA-w9pg-9w7m-8c66

Adobe Connect | Deserialization of Untrusted Data (CWE-502)

Priority MEDIUM 45CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

Adobe Connect versions 24.0 and earlier are affected by a Deserialization of Untrusted Data vulnerability that could lead to arbitrary code execution by an attacker. Exploitation of this issue does require user interaction and scope is changed.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01203 68th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AdobeAdobe Connectup to 24.0—No fix listedCNA
  • Adobe Connect VendorAdobe Affected up to 24.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:adobe:connect_desktop_application:*:*:*:*:*:windows:*:*before 2025.5.5VulnerableAdobe
  • cpe:2.3:a:adobe:connect_desktop_application:*:*:*:*:*:windows:*:* Versions before 2025.5.5 Vulnerable ·Adobe

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-27203
  2. 2026-10-03 Alias added: GHSA-w9pg-9w7m-8c66

References

Advisory 1

  • TI-2026-26903 Adobe Connect | Deserialization of Untrusted Data (CWE-502) CVSS 3.1CRITICAL 9.6
  • TI-2026-21730 Adobe Connect | Deserialization of Untrusted Data (CWE-502) CVSS 3.1CRITICAL 9.6
  • TI-2026-26861 Adobe Connect | Deserialization of Untrusted Data (CWE-502) CVSS 3.1CRITICAL 9.3
  • TI-2026-26904 Adobe Connect | Incorrect Authorization (CWE-863) CVSS 3.1CRITICAL 9.3
  • TI-2026-21678 Adobe Connect | Cross-site Scripting (DOM-based XSS) (CWE-79) CVSS 3.1CRITICAL 9.3
  • TI-2026-21677 Adobe Connect | Cross-site Scripting (Reflected XSS) (CWE-79) CVSS 3.1CRITICAL 9.3
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences