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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.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

7.4HighCNA
Exploited
No known exploitation
Fix
Fixed in 7151
Who is exposed
Not reported

Do first: Upgrade to a fixed version: 7151.

24Pcve.now Index 24 of 100 · methodology v3 · provisional
  • Exploitation?/40Exploitation: unknown (data gap). No CISA SSVC exploitation rating yet
  • Exposure17/25No login or user action needed, reachable over the network without a login · Data gap: Advisories don't say whether default setups are affected
  • Reach?/20Reach: unknown (data gap). No tracked technology or package matched
  • Severity7.4/10CVSS 7.4
  • No patch0/5No signal

What would change the score

  • Would score about 69 if added to CISA KEV
  • Would score about 64 if CISA's SSVC rates exploitation active
  • Would score about 29 if advisories confirm default setups are exposed

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.

Published
Last modified
Published
Not listed in CISA KEV
1.18% · 67th percentile
24/100 · provisional
Unclear
Fix
Fixed in 7151
None on Exploit-DB, Metasploit or GitHub

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.

Read the original 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

  • Upgrade to a fixed version: 7151.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • Zohocorp ManageEngine Key Manager Plus

    fixed in 7151

Evidence 1

  1. Link

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

FAQ

Questions about CVE-2026-77799

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: cve.now feed data

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: manageengine.com

Which versions are affected by CVE-2026-77799?

ManageEngine Key Manager Plus: before 7151.Source: cve.now feed data

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: manageengine.com

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: manageengine.com