How severe is CVE-2024-29973?

CVE-2024-29973 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2024-29973?

Affected package information for CVE-2024-29973 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2024-29973?

No fixed version has been published for CVE-2024-29973 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2024-29973 actively exploited in the wild?

Yes. There are 10 known exploit references for CVE-2024-29973, including 6 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2024-29973?

CVE-2024-29973 has an EPSS (Exploit Prediction Scoring System) score of 94.0%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

What type of vulnerability is CVE-2024-29973?

CVE-2024-29973 is classified as OS Command Injection (CWE-78). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Which products and versions are affected by CVE-2024-29973?

CVE-2024-29973 affects zyxel nas326 firmware; zyxel nas542 firmware. Check the affected-products list on this page against your deployed version to confirm exposure.

Is there exploit tooling available for CVE-2024-29973?

A Nuclei detection template exists for CVE-2024-29973, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2024-29973 published, and has it been updated?

CVE-2024-29973 was published on June 4, 2024 and was last updated on January 22, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2024-29973

CRITICAL

** 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…

Published

Jun 4, 2024

Updated

Jan 22, 2025

Affected

0 pkgs

Patched

None yet

Exploits

10 known

EPSS Exploitation Probability

via FIRST.org ↗

94.0%probability of exploitation in next 30 days

Very High Risk100th percentile-0.05%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

** 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.

Affected Products

2 products · 2 configurations

nas326 firmwarezyxel

< 5.21\(aazf.17\)c0

range

nas542 firmwarezyxel

< 5.21\(abag.14\)c0

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.