AUGUST 23, 2026
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Case File

CVE-2026-53904

HIGH · CVSS 7.1 EPSS 0.20%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-07-01 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.1. It may lead to a denial-of-service condition.

CVE
CVE-2026-53904
Severity
HIGH
CVSS
7.1
EPSS
0.20%

Original NVD Description

MCO is vulnerable to Account Denial of Service due to improper implementation of password reset functionality. Each password reset request invalidates previously set password as well as previously issued temporary passwords, furthermore, password resets are not limited in any way. An attacker who provides victim's email and answer to their security question, can successfully initiate the reset process and continuously invalidate credentials, effectively locking the victim out of their account. Answering security questions has a limited number of tries which lowers the risk of this vulnerability. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 25.3.3.1 but may also affect other versions.

Related CVEs

Other vulnerabilities affecting the same vendor(s)