CVE-2023-27992

CriticalKnown Exploited

The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware…

Zyxel·CWE-78·Published 2023-06-19

CVSS

9.8

EPSS

0.87

KEV

Yes

Exploits

cve.orgen

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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.

NVDen

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Version	Type	Source	Base	Exp	Impact	Vector
3.1	Primary	cve.org	9.8	—	—	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1	Secondary	NVD	9.8	3.9	5.9	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2023-27992

CVSS metrics across sources