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CISA KEV additions

CISA Adds 1 Known Exploited Vulnerability to Catalog (November 3, 2026)

Source: CISA KEV Catalog · Updated 2026-11-03

Summary

On November 3, 2026, CISA added 1 vulnerability to its Known Exploited Vulnerabilities (KEV) catalog: CVE-2026-119977. A KEV listing means CISA has evidence of active exploitation. CISA sets a remediation due date for US federal civilian agencies under its binding operational directives; any organization running the affected products should treat these as patch-now priorities.

CVE-2026-119977: WordPress WordPress Core Time-of-check Time-of-use (TOCTOU) Race Condition Vulnerability

WordPress · WordPress Core

WordPress WordPress Core contains a time-of-check time-of-use (TOCTOU) race condition vulnerability that could allow unauthenticated attackers to execute code on the server during the upgrade window. This is due to predictable, web-accessible staging paths used during full-package core upgrades.

Federal due date
2026-11-06
Ransomware use
Unknown
Added
2026-11-03

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

NVD record

Check whether you run these products: our vulnerability scanner comparison covers tools that detect KEV-listed flaws. See also the KEV dashboard and KEV history by vendor.