CVE-2026-33434

MEDIUM

4.3

CVSS v3

Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 4.6.0 and above, prior to 4.14.5, a logic error in CheckRateLimitsMiddleware.dispatch() causes the /events endpoint rate check to unconditionally overwrite the general rate limit result. When the global max_request_per_minute is exceeded, requests to /events still succeed if the events-specific counter (hardcoded 30/min) has not been reached. This allows event injection into analysisd beyond the admin-configured global rate limit. This issue has been fixed in version 4.14.5.

CWE-799

How to fix

Remediation Available

Wazuh AgentWindows application

Affected:4.6.0 4.14.5Fixed in:4.14.5

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.27%probability of exploitation in 30 days

18thpercentile

Low risk: more likely to be exploited than 18% of all known CVEs.

References

Exploit1

github.com

Related Vulnerabilities

Other CWE-799 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-35621	High	7.5	2.3%	-	-
CVE-2016-6543	Medium	5.9	2.2%	-	-
CVE-2021-37910	Low	3.7	2.1%	-	Fix
CVE-2021-32705	Medium	5.3	1.7%	-	Fix
CVE-2021-32703	Medium	5.3	1.5%	-	Fix
CVE-2021-41177	High	8.1	1.5%	-	Fix

Common questions

How do I fix CVE-2026-33434?

Upgrade Wazuh Agent to 4.14.5 or later.

Is CVE-2026-33434 being actively exploited?

Not that we know of. CVE-2026-33434 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.27% is the estimated probability that it will be exploited in the next 30 days. That is higher than 18% of all scored CVEs.

How severe is CVE-2026-33434?

CVE-2026-33434 has a CVSS v3 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-33434 affect?

Published advisories record a fix for Wazuh Agent (Windows application). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-20.