Zyxel EMG2926 Routers Command Injection Vulnerability

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. Apr 6, 2017 · Catalog

   Detected

   A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8. The vulnerability is located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute arbitrary commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI.

2. Sep 18, 2023 · CISA KEV

   Known exploited

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

3. Oct 9, 2023 · CISA KEV

   Remediation due

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

4. Oct 1, 2026 · Catalog

   Updated

   A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8. The vulnerability is located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute arbitrary commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI.

Affected

• cpe zyxel/emg2926 firmwarev1.00\(aaqt.4\)b8
• vendor Zyxel EMG2926 Routersversion unspecified

Sources

• CISA KEVConfirmed exploitationCVE-2017-6884

  Zyxel EMG2926 routers contain a command injection vulnerability located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute malicious commands on the router, such as the ping_ip parameter to the expert/maintenance/diagnostic/nslookup URI.

  cisa.gov
• CVE.orgVulnerability recordCVE-2017-6884

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2017-6884

  30-day exploitation probability 34.6%

  first.org
• Exploit DatabasePublic exploit reference41782

  Public archive entry. The exploit body is not stored here.

  exploit-db.com
• NIST NVDVulnerability recordCVE-2017-6884

  A command injection vulnerability was discovered on the Zyxel EMG2926 home router with firmware V1.00(AAQT.4)b8. The vulnerability is located in the diagnostic tools, specifically the nslookup function. A malicious user may exploit numerous vectors to execute arbitrary commands o

  nvd.nist.gov

References

• CISA note · nvd.nist.gov
• US Government Resource · cisa.gov
• Exploit · exploit-db.com
• CISA note · zyxel.com
• CISA note · zyxelguard.com