RCE in Zyxel Nas326
CVE-2024-29973
** UNSUPPORTED WHEN ASSIGNED ** The command injection vulnerability in the “setCookie” parameter in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted HTTP POST request.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.861 (99.7th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.861 · newest: 0.861 · change: 0.000
Affected products
- Zyxel Nas326
- Zyxel Nas326 Firmware — versions < V5.21(AAZF.17)C0
- Zyxel Nas326 Firmware
- Zyxel Nas542
- Zyxel Nas542 Firmware — versions < V5.21(ABAG.14)C0
- Zyxel Nas542 Firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for… (vendor-advisory, Vendor Advisory)
- outpost24.com/blog/zyxel-nas-critical-vulnerabilities/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2024-29973?
- CVE-2024-29973 is a critical-severity vulnerability in Zyxel Nas326, classified under OS Command Injection. CVSS score: 9.8/10. Published 2024-06-04.
- How severe is CVE-2024-29973?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2024-29973 known to be exploited?
- 41 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.