A command injection vulnerability was discovered on the Zyxel EMG2926 home router with…
Priority CRITICAL 97Exploited in the wildCWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-78.
Summary
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.
Why it matters now
Exploitation Active In CISA KEV since 2023-09-18CISA due date 2023-10-09Known ransomware use
EPSS 0.32976 98th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2023-09-18 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2017-6884
- 2026-10-03 Alias added: GHSA-x6r5-p9fx-6346
References
Exploit 1
Sources
- CVE-2017-6884 · CVE Program
- CVE-2017-6884 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-x6r5-p9fx-6346 · GitHub Advisory Database · CC BY 4.0
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