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CVE-2026-12571 – Authentication Bypass / Account Takeover – ManageEngine DDI Central Build 6200 and

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Summary

CVE-2026-12571 is a critical authentication bypass vulnerability in the password-reset workflow of ManageEngine DDI Central. The flaw allows an unauthenticated attacker to reset an arbitrary account’s password without possessing a valid recovery/verification code, resulting in full account takeover. The issue affects DDI Central Build 6200 and earlier and has been assigned a CVSS v3.1 base score of 9.8 (Critical).

Technical details

  • Root cause: The password-reset confirmation workflow accepted password-reset requests without properly validating that a verification/recovery code was supplied and correct, and lacked explicit permission checks on the confirmation interface (CWE-287: Improper Authentication; CWE-640: Weak Password Recovery Mechanism for Forgotten Password).
  • Trigger conditions: An attacker submits a password-reset request against the DDI Central Console targeting a victim account, then completes the reset confirmation step with an empty or invalid verification code, bypassing the intended code-validation check.
  • Attack vector: Network-based (AV:N), requires no authentication (PR:N) and no user interaction (UI:N), with low attack complexity (AC:L) — making it remotely and trivially exploitable by any network-connected attacker.
  • Impact: Successful exploitation allows an attacker to take over any account, including administrative accounts, on the affected DDI Central instance, leading to full compromise of confidentiality, integrity, and availability (C:H/I:H/A:H) of the DNS/DHCP/IPAM management platform.

Affected software

  • ManageEngine DDI Central, versions up to and including Build 6200 (6.2.0)

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Upgrade ManageEngine DDI Central Console and Node Agent instances to Build 6201 or later using the vendor’s service pack, which enforces validation of non-empty/valid verification codes during password resets and adds explicit permission checks to the password-reset confirmation interface.
  • If immediate patching is not possible: Restrict network access to the DDI Central Console management interface to trusted internal networks or VPN only, disable or closely monitor password-reset functionality, and review authentication logs for anomalous or unauthorized password-reset/account-takeover attempts until the patch can be applied.

References

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