SEPTEMBER 18, 2026
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Case File

CVE-2026-42508

CRITICAL · CVSS 9.1 EPSS 0.57%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-05-22 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. See the original NVD description below for full technical details.

CVE
CVE-2026-42508
Severity
CRITICAL
CVSS
9.1
EPSS
0.57%

Original NVD Description

Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.

Related CVEs

Other vulnerabilities affecting the same vendor(s)