Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | Nas326 Firmware | <= 5.21\(aazf.14\)c0 |
| Zyxel | Nas326 | - |
| Zyxel | Nas542 Firmware | <= 5.21\(abag.11\)c0 |
| Zyxel | Nas542 | - |
Related Weaknesses (CWE)
References
- https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisPatchVendor Advisory
- https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisPatchVendor Advisory
FAQ
What is CVE-2023-35138?
CVE-2023-35138 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 unauth...
How severe is CVE-2023-35138?
CVE-2023-35138 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2023-35138?
Check the references section above for vendor advisories and patch information. Affected products include: Zyxel Nas326 Firmware, Zyxel Nas326, Zyxel Nas542 Firmware, Zyxel Nas542.