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Vulnerabilities

Vulnerability · CVE-2024-29973

Zyxel NAS setCookie Crafted HTTP POST Vulnerability

Published Jun 24, 2024 · catalog updated Jun 24, 2024 · NAS Zyxel

Patch now

CVE-2024-29973 is in the CISA known-exploited catalog. Confirm NAS Zyxel against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
86.09%
Remediation
Remediation guidance
Affected products
vendor NAS Zyxel

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. VulnCheck canary evidence. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor NAS Zyxelversion unspecified

How to fix CVE-2024-29973

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2024-29973 is in the CISA known-exploited catalog. Confirm NAS Zyxel against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 86.09%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 24, 2024 · VulnCheck KEV

    Detected

    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. VulnCheck canary evidence. Initial-access exploit intelligence.

  2. Jun 24, 2024 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2024-29973

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2024-29973

    30-day exploitation probability 86.1%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2024-29973

    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 craf

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.