CVE-2024-29973 in the critical feed json
** UNSUPPORTED WHEN ASSIGNED ** The command injection vulnerability in the “setCookie” parameter in Zyxel NAS326 firmware versions before V…
published 2024-06-04 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-26947
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 86.2%
- EPSS 86.2% chance of exploitation in 30 days, percentile 99.7%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
** 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.
Patch / fix
- zyxel nas326_firmware v5.21\(aazf.17\)co
- zyxel nas542_firmware 5.21\(abag.14\)co
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
86.20% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Zyxel NAS326 Firmware < V5.21(AAZF.17)C0 - Command Injection nuclei detection template
- outpost24.com https://outpost24.com/blog/zyxel-nas-critical-vulnerabilities/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Zyxel NAS326 firmware
- Zyxel NAS542 firmware
- zyxel nas326_firmware
- zyxel nas542_firmware
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
outpost24.com
/blog/zyxel-nas-critical-vulnerabilities/
exploit, third-party-advisory
-
zyxel.com
/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-nas-products-06
vendor-advisory
Sources
- CVE List CVE-2024-29973
- NVD CVE-2024-29973
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.