Authentication bypass vulnerability
Affects ManageEngine Key Manager Plus through build 7150 when single sign-on (SAML) is configured. Fixed in build 7151.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- Fixed in 7151
- Who is exposed
- Specific setups only
Do first: Check whether your setup matches what the bug needs. Single sign-on (SAML) is configured in Key Manager Plus Affected product versions: Key Manager Plus all versions until 7150
- Exploitation0/40No signal
- Exposure12/25Specific setups only, reachable over the network without a login
- Reach?/20Reach: unknown (data gap). No tracked technology or package matched
- Severity8.7/10CVSS 7.7, total technical impact per CISA
- No patch0/5No signal
What would change the score
- Would score about 71 if added to CISA KEV
- Would score about 66 if CISA's SSVC rates exploitation active
CVE-2026-77800 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.7 (high) and affects ManageEngine Key Manager Plus; fixed in 7151.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- FIRST's estimate of the chance attackers exploit it in the next 30 days, updated daily.What do these mean? →
- 0.96% · 61st percentile
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 21/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Fix
- Fixed in 7151
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
ManageEngine Key Manager Plus, a tool for managing cryptographic keys and certificates, is affected by this flaw. An attacker could exploit it to gain unauthorized access by logging in with SAML assertions issued for a different service provider.
Read the original description
ManageEngine Key Manager Plus versions before 7151 are vulnerable to a SAML authentication bypass that allows attackers to log in using SAML assertions meant for another service provider.
What to do
Check whether your setup matches what the bug needs.
Single sign-on (SAML) is configured in Key Manager Plus Affected product versions: Key Manager Plus all versions until 7150Upgrade to a fixed version: 7151.
Timeline
- CVE published
- First seen by cve.now
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Zohocorp ManageEngine Key Manager Plus
fixed in 7151
Evidence 1
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-77800
Is CVE-2026-77800 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 could obtain a logged-in session as an existing Key Manager Plus user without knowing that user's password. If the assertion identifies an administrator, the attacker could reach every function available to that role.Source: manageengine.com
Which versions are affected by CVE-2026-77800?
ManageEngine Key Manager Plus: before 7151.Source: cve.now feed data
Am I affected, and how do I check?
Key Manager Plus builds up to and including 7150 are affected, but only where single sign-on (SAML) is configured. To check, confirm the build number in the product and whether SAML single sign-on is enabled in its authentication settings.Source: manageengine.com
How do I fix CVE-2026-77800?
Upgrade Key Manager Plus to build 7151 or later. No workaround is listed in the facts.Source: manageengine.com