P4Verified

CVE-2026-102149: kiteworks before 9.5.1 (exclusive); +1 more affected products

CVE-2026-102149. CVSS 3.1 base score 9.4 (CRITICAL, Source advisory). EPSS 0.00239 (percentile 0.13643), scored 2026-10-06.

Affected technology

kiteworks · before 9.5.1 (exclusive)
accellion

Email Protection Gateway · 0 to before 9.5.1
Kiteworks

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An attacker could 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. Source advisory’s CVSS 3.1 assessment (base score 9.4/10) rates confidentiality and integrity impact as high; availability impact as low.

Published 2026-10-07 15:14:35.463775+00:00

CWE: CWE-306
CCR priority: 37.7 /100 (P4)
CVSS 3.1: 9.4 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L · Source advisory
EPSS: 0.00239 · percentile 0.13643 · 2026-10-06
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-07 15:14:18.222433+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-102149.html