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CVE-2026-75723 – Unauthenticated Remote Code Execution – Adobe Campaign Classic ≤ 7.4.4 build 9401

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Summary

CVE-2026-75723 is a critical Incorrect Authorization vulnerability (CWE-863) in Adobe Campaign Classic (ACC) that allows arbitrary code execution in the context of the current user. The flaw requires no authentication and no user interaction, and is remotely exploitable over the network, earning it the maximum CVSS v3.1 base score of 10.0.

Technical details

  • Root cause: Adobe Campaign Classic fails to correctly enforce authorization checks on a component reachable over the network, allowing an unauthenticated actor to reach functionality that should require valid credentials or elevated privileges.
  • Trigger conditions: No user interaction is required; an attacker only needs network access to a vulnerable ACC instance.
  • Attack vector: Network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N).
  • Impact: Successful exploitation results in arbitrary code execution in the context of the current user running the application, with a changed scope (S:C) and complete loss of confidentiality, integrity, and availability of the affected system.

Affected software

  • Adobe Campaign Classic (ACC), all versions from 0 up to and including 7.4.4 build 9401
  • Adobe Campaign Classic 7.4.4 build 9402 and later are not affected (patched)

Severity

  • CVSS v3.1 Base Score: 10.0 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Upgrade Adobe Campaign Classic to build 7.4.4 build 9402 or later, as specified in Adobe Security Bulletin APSB26-142.
  • If immediate patching is not possible: Restrict network access to Adobe Campaign Classic management interfaces and application endpoints to trusted networks only (e.g., via firewall rules or VPN), and monitor for anomalous or unauthenticated requests to the application until the patch can be applied.
  • Prioritize remediation given the vulnerability is internet-exposed, requires no authentication or user interaction, and carries a maximum severity score.

References

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