CVE-2017-6884
HighActively exploited (CISA KEV)Known to be used in ransomware campaigns
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Zyxel EMG2926 Routers
PublishedApr 6, 2017
First seenApr 6, 2017
Added to KEVSep 18, 2023
Weakness typeCWE-78OS command injection
How to fix
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA due date: Oct 9, 2023Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| zyxel emg2926_firmware | v1.00\(aaqt.4\)b8 | — |
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