CVE-2023-6397
moderate-risk
Published 2024-02-20
A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service (DoS) conditions by downloading a crafted RAR compressed file onto a LAN-side host if the firewall has the “Anti-Malware” feature enabled.
Do I need to act?
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0.13% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10
Medium
ADJACENT_NETWORK
/ LOW complexity
Affected Products (20)
Affected Vendors
References (2)
48
/ 100
moderate-risk
Severity
21/34 · High
Exploitability
1/34 · Minimal
Exposure
26/34 · High