[NEW] [medium] Wazuh: Vulnerability allows denial of service

mediumCVE-2026-56401

A remote, authenticated attacker can exploit a vulnerability in Wazuh to conduct a denial of service attack.

CSIRTS triage

vendor: Wazuh product: Wazuh Denial of service

What: A vulnerability allows a remote, authenticated attacker to conduct a denial of service attack.
Who is affected: Authenticated users of Wazuh are affected.
Urgency: Remediation is medium urgency due to the potential for service disruption.
Action: Apply patches as they become available.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Wazuh

Get an email when a new Wazuh advisory drops — max one per day, one-click unsubscribe.

Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-07-09
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2250

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-564010.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-56401	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

mediumCVE-2026-56401: Wazuh wazuh-modulesd before 5.0.0-beta3 contains a null pointer dereference vulnerability in i…nvd

Recent advisories for Wazuh

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

critical[UPDATE] [critical] Wazuh Manager: Vulnerability allows privilege escalationcert-bund · 2026-07-09
mediumCVE-2026-56401: Wazuh wazuh-modulesd before 5.0.0-beta3 contains a null pointer dereference vulnerability in i…nvd · 2026-07-08
criticalexploitedCVE-2025-24016: Wazuh Server Deserialization of Untrusted Data Vulnerabilitycisa-kev · 2025-06-10