by Kastro
Paper/Archive/CVE-2023-35138

CVE-2023-35138

Zyxel NAS326 firmware — A command injection vulnerability in the “show_zysync_server_contents” function of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and…

EPSS 40%CVSS 9.8
critical.is priorityof 100
49
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 98.6.986 × 2019.7No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

A command injection vulnerability in the “show_zysync_server_contents” function of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted HTTP POST request.

Affected

ProductAffectedFixed inSource
NAS326 firmwareV5.21(AAZF.14)C0–CNA
NAS542 firmwareV5.21(ABAG.11)C0–CNA

Scores by source

Zyxel (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

advisoryzyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products