CVE-2022-26562

9.8 criticalEPSS 2.2%

Critical (9.8) in kopano groupware core. EPSS 2.2% chance of exploitation in the next 30 days.

An issue in provider/libserver/ECKrbAuth.cpp of Kopano Core <= v11.0.2.51 contains an issue which allows attackers to authenticate even if the user account or password is expired. It also exists in the predecessor Zarafa Collaboration Platform (ZCP) in provider/libserver/ECPamAuth.cpp of Zarafa >= 6.30 (introduced between 6.30.0 RC1e and 6.30.8 final).

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)
CWE: CWE-287
Published: 2022-04-01
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

kopano:groupware_core

References

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-342b96903b
https://bugzilla.redhat.com/show_bug.cgi?id=2192126
https://github.com/Kopano-dev/kopano-core/blob/master/provider/libserver/ECKrbAuth.cpp#L137
https://jira.kopano.io/browse/KC-2021
https://kopano.com/

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