CVE-2023-22913
moderate-risk
Published 2023-04-24
A post-authentication command injection vulnerability in the “account_operator.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote authenticated attacker to modify device configuration data, resulting in denial-of-service (DoS) conditions on an affected device.
Do I need to act?
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0.90% 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
8
CVSS 8.1/10
High
NETWORK
/ LOW complexity
Affected Products (11)
Affected Vendors
References (2)
47
/ 100
moderate-risk
Severity
28/34 · Critical
Exploitability
3/34 · Minimal
Exposure
16/34 · Moderate