CVE-2023-27992
CVSS v3
9.8
CRITICAL
EPSS Score
86.5 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.
CISA Known Exploited Vulnerability
- Date Added
- 2023-06-23
- Patch Due Date
- 2023-07-14
- Ransomware Use
- Unknown
Technical details
- Published
- 2023-06-19
Frequently asked questions
What is CVE-2023-27992?
The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.
Is CVE-2023-27992 actively exploited?
Yes. CVE-2023-27992 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2023-07-14.
What is the CVSS score for CVE-2023-27992?
CVE-2023-27992 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2023-27992 affecting your environment?
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