cbcvebase.
CVE-2026-102149
published 2026-09-30

CVE-2026-102149: Kiteworks Email Protection Gateway did not sufficiently restrict which account a certificate could be assigned to. This could allow an attacker to associate a…

PriorityP259critical9.4CVSS 3.1
AVNACLPRNUINSUCHIHAL
EPSS
0.24%
13.6th percentile
Kiteworks Email Protection Gateway did not sufficiently restrict which account a certificate could be assigned to. This could allow an attacker to associate a certificate with another user's account, affecting the confidentiality and integrity of that account's encrypted mail and, where certificate-based login is enabled, potentially permitting unauthorized access to the account.

Affected

1 ranges
VendorProductVersion rangeFixed in
kiteworksemail_protection_gateway< 9.5.19.5.1
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.