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HIGH

CVE-2026-102128

CVSS v3

7.5

HIGH

EPSS Score

0.4 %

exploit probability, as of 2026-10-01

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

An identity-verification weakness in Kiteworks Email Protection Gateway allowed the gateway to act on the Kiteworks platform on behalf of a user it had not authenticated, and to provision a platform account for an identity it did not already know. A remote, unauthenticated sender could potentially exploit this to obtain control of a platform account.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published
2026-09-30
Last Modified
2026-10-01

Frequently asked questions

What is CVE-2026-102128?

An identity-verification weakness in Kiteworks Email Protection Gateway allowed the gateway to act on the Kiteworks platform on behalf of a user it had not authenticated, and to provision a platform account for an identity it did not already know. A remote, unauthenticated sender could potentially exploit this to obtain control of a platform account.

Is CVE-2026-102128 actively exploited?

Active exploitation of CVE-2026-102128 has not been confirmed. Its EPSS score was 0.4% on 2026-10-01, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-102128?

CVE-2026-102128 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

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