CVE-2026-32983Public exploitNetwork attack vector

Unauthenticated service interruption via unlimited TLS renegotiation

Published Mar 27, 2026 · Updated Mar 27, 2026

Denial of service in Wazuh Manager authd through 4.7.3 allows remote attackers to exhaust CPU via TLS renegotiation requests. The port 1515 TLS listener accepts repeated client-initiated renegotiations within one connection without imposing a request limit. No authentication or user interaction is required; sustained requests consume CPU until the authd enrollment service becomes unavailable.

CVSS severity6.9
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Wazuh Manager authd through 4.7.3 allows remote attackers to exhaust CPU via TLS renegotiation requests. The port 1515 TLS listener accepts repeated client-initiated renegotiations within one connection without imposing a request limit. No authentication or user interaction is required; sustained requests consume CPU until the authd enrollment service becomes unavailable.

The record

CVE
CVE-2026-32983
Published
Mar 27, 2026
Updated
Mar 27, 2026
Vendor
Wazuh
Product
Wazuh manager
Classifications
CWE-276, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 4.7.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wazuh · Wazuh managerversion=<= 4.7.3

Published CVSS scores

6.9VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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