AUGUST 4, 2026
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Case File

CVE-2023-0657

LOW · CVSS 3.4 EPSS 0.30%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2024-11-17 · Last synced 2026-08-04

CyberRota Analysis

This is a low severity vulnerability with a CVSS score of 3.4. It affects Exchange. Exploitation may require the attacker to be authenticated.

CVE
CVE-2023-0657
Severity
LOW
CVSS
3.4
EPSS
0.30%
Exchange

Original NVD Description

A flaw was found in Keycloak. This issue occurs due to improperly enforcing token types when validating signatures locally. This could allow an authenticated attacker to exchange a logout token for an access token and possibly gain access to data outside of enforced permissions.