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CVE-2023-7340

17
FAUCET Score

CVE-2023-7340 identifies a heap-buffer overflow vulnerability within the Wazuh authd component, which attackers can exploit by sending specially crafted input to cause memory corruption. This flaw, rated Medium (CVSS 4.3), has a network attack vector with low complexity but requires user interaction. Successful exploitation can lead to a denial of service condition for the authentication daemon, impacting its availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion regarding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.5.0, <= 4.3.10CPE match
cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*
<= 3.5.0CPE matchmatch criteria
cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*
4.3.10CPE matchmatch criteria
cpe:2.3:a:wazuh:wazuh:4.3.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.3MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 24th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

github.com / wazuh/wazuh/security/advisories/GHSA-grjq-p5fg-m24r
ExploitVendor Advisory
vulncheck.com / advisories/heap-buffer-overflow-in-wazuh-authd
Third Party Advisory