RCE in Zyxel Nas326
CVE-2023-37928
A post-authentication command injection vulnerability in the WSGI server of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an authenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.602 (99.1th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.602 · newest: 0.602 · change: 0.000
Affected products
- Zyxel Nas326
- Zyxel Nas326 Firmware — versions V5.21(AAZF.14)C0
- Zyxel Nas326 Firmware
- Zyxel Nas542
- Zyxel Nas542 Firmware — versions V5.21(ABAG.11)C0
- Zyxel Nas542 Firmware
Weakness classification (CWE)
References
- www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for… (vendor-advisory, Patch, Vendor Advisory)
- bugprove.com/knowledge-hub/cve-2023-37927-and-cve-2023-37928-multiple-post-auth…
Frequently asked questions
- What is CVE-2023-37928?
- CVE-2023-37928 is a high-severity vulnerability in Zyxel Nas326, classified under OS Command Injection. CVSS score: 8.8/10. Published 2023-11-30.
- How severe is CVE-2023-37928?
- High severity. CVSS v3 base score is 8.8 out of 10.