Is CVE-2026-77800 being actively exploited?

CVE-2026-77800 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2026-77800?

CVE-2026-77800 has a CVSS 3.1 base score of 7.7 (HIGH).

CVE-2026-77800

HIGH · CVSS 7.7EPSS 1.0%EU EUVD

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.

Key facts

CVSS score: 7.7 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Weakness (CWE): CWE-304
EPSS score: 1.0% (62th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2026-115675)
Published: November 3, 2026
NVD last modified: November 4, 2026
Status: Awaiting Analysis

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2026-115675 in the EU Vulnerability Database. Last updated in EUVD on November 4, 2026.

View on the EU Vulnerability Database

References

https://www.manageengine.com/key-manager/advisory/cve-2026-77800.html

Last updated November 4, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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