# CVE-2026-77777: ManageEngine Key Manager Plus improper access control

Source: https://junglewise.ai/threats/cve-2026-77777-manageengine-key-manager-plus-versions-before-7151-are-vulnerable  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-03. Updated: 2026-11-03  
License: CC BY 4.0 with a link back

CVE-2026-77777 · Severity: high · CVSS 7.1 · Published 2026-11-03

ManageEngine Key Manager Plus is a certificate and credential management system used to secure digital certificates and deployment credentials. A flaw in access controls allows authenticated users to modify another user's ACME certificate deployment credentials, potentially redirecting certificates to attacker-controlled servers and enabling unauthorized access or service impersonation.

Technologies: [ManageEngine Key Manager Plus](https://junglewise.ai/threats/technologies/key-manager-plus). Vendors: [ManageEngine](https://junglewise.ai/threats/vendors/manageengine).

## Quick answers

**Is CVE-2026-77777 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-77777 being exploited in the wild.

**How severe is CVE-2026-77777?** High severity, with a CVSS score of 7.1, published 3 November 2026.

**Which products and versions are affected?** ManageEngine Key Manager Plus before 7151.

**Is there a fix for CVE-2026-77777?** Yes: fixed in 7151. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-77777 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-77777?** Check whether you run ManageEngine Key Manager Plus 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 7151

## Technical details

An improper access control vulnerability in Key Manager Plus allows authenticated users with certificate management privileges to modify deployment credentials for ACME certificate mappings belonging to other users. The attack requires authentication and successful exploitation can redirect certificates and private keys to attacker-controlled infrastructure. The fix validates the requesting user's access privileges against the selected certificate mapping before permitting credential modification.

## Affected products

- ManageEngine Key Manager Plus before 7151

## Timeline

- 2026-11-03: disclosed
- 2026-08-21: patched

## References

- [https://www.manageengine.com/key-manager/advisory/cve-2026-77777.html](https://www.manageengine.com/key-manager/advisory/cve-2026-77777.html)

## Related threats

- [ManageEngine Key Manager Plus improper access control in certificate export](https://junglewise.ai/threats/cve-2026-77779-manageengine-key-manager-plus-versions-before-7151-were)
- [ManageEngine Key Manager Plus SAML authentication bypass](https://junglewise.ai/threats/cve-2026-77800-manageengine-key-manager-plus-versions-before-7151-are-vulnerable)
- [ManageEngine Key Manager Plus two-factor authentication bypass](https://junglewise.ai/threats/cve-2026-77799-manageengine-key-manager-plus-versions-before-7150-are-vulnerable)