MEDIUM
CVE-2023-7340
CWE-125Published: March 27, 2026· Updated: Mar 31, 2026
4.3
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:5.3th
Official 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.
Technical Analysis
CVE-2023-7340 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Affected Vendors & Products
wazuh1 product
wazuh
Source: NVD CPE · 2 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://github.com/wazuh/wazuh/security/advisories/GHSA-grjq-p5fg-m24rExploit · Vendor Advisory
→
https://www.vulncheck.com/advisories/heap-buffer-overflow-in-wazuh-authdThird Party Advisory
Quick Facts
CVE IDCVE-2023-7340
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-125
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMar 27, 2026
Related CVEs (CWE-125)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-7340 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.