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2023 articles · 105826 vulns · 36/41 feeds (7d)
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7.5
CVE-2023-7340EXPLOITED
wazuh · wazuh

Wazuh authd service (os_auth) Heap-based Buffer Overflow

Description

Wazuh authd contains a heap-buffer overflow vulnerability that allows attackers to cause memory corruption and malformed heap data by sending specially crafted input. Attackers can exploit this vulnerability to trigger a denial of service condition, resulting in low availability impact to the authentication daemon.

Affected Products

VendorProductVersions
wazuhwazuh3.5.0, 4.3.10

References

  • https://github.com/wazuh/wazuh/security/advisories/GHSA-grjq-p5fg-m24r(vendor-advisory)
  • https://www.vulncheck.com/advisories/heap-buffer-overflow-in-wazuh-authd(third-party-advisory)

Related News (2 articles)

Tier B
BSI Advisories5h ago
[NEU] [mittel] Wazuh: Mehrere Schwachstellen
→ No new info (linked only)
Tier C
VulDB3d ago
CVE-2023-7340 | Wazuh 3.5.0/4.3.10 authd out-of-bounds
→ No new info (linked only)
CVSS 3.17.5 NONE
CISA KEV❌ No
Actively exploited✅ Yes
CWECWE-125
Published3/27/2026
Last enriched3d agov2
Tags
denial-of-servicecode-executiondata-manipulationinformation-disclosure
Trending Score71
Source articles3
Independent3
Info Completeness8/14
Missing: epss, kev, exploit, patch, iocs, mitre_attack

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Related CVEs (5)

CRITICALCVE-2025-15615EXP
Wazuh Manager authd service Improper SSL/TLS Renegotiation Handling leading to Denial of Service
Trending: 78
CRITICALCVE-2025-15616EXP
Wazuh Agent and Manager OS Command Injection and Untrusted Search Path
Trending: 68
CRITICALCVE-2025-15612
Wazuh Provisioning Scripts / Build Infrastructure Improper Certificate Validation leading to MITM and RCE
Trending: 42
LOWCVE-2026-32984EXP
Heap buffer overflow in wazuh-authd
Trending: 24
MEDIUMPRE-CVE
Multiple vulnerabilities in Wazuh
Trending: 23

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Mar 27, 2026
Discovered by ZDM
Mar 27, 2026
Updated: description, severity, cvssEstimate, activelyExploited
Mar 27, 2026
Actively Exploited
Mar 27, 2026

Version History

v2
Last enriched 3d ago
v2Tier C3d ago

Updated description with more technical detail, changed severity to HIGH, set CVSS estimate to 7.5, and marked as actively exploited.

descriptionseveritycvssEstimateactivelyExploited
via VulDB
v13d ago

Initial creation