CVE-2024-29972: zyxel nas326_firmware OS Command Injection
Vulnerability summary
CVE-2024-29972 is a critical (CVSS 9.8) OS Command Injection vulnerability in zyxel nas326_firmware. EPSS estimates a 89.33% chance of exploitation in the next 30 days, higher than 99.7% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 04-06-2024PublishedVulnerability first disclosed.
- 02-08-2024Last modifiedVulnerability information updated.
Description
** UNSUPPORTED WHEN ASSIGNED ** The command injection vulnerability in the CGI program "remote_help-cgi" 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.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
89.33%
Chance of exploitation in the next 30 days
Percentile
100%
Versus all other CVEs
30-day change
0.00 pp
From 89.33% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (outpost24.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Zyxel4 products
- nas326_firmware< 5.21\(aazf.17\)c0
- nas326 firmware< V5.21(AAZF.17)C0
- nas542_firmware< 5.21\(abag.14\)c0
- nas542 firmware< V5.21(ABAG.14)C0
1 vendor · 4 products
References
2 links- www.zyxel.com/global/…Vendor Advisory