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9.3
CVE-2026-108892: Linksys E1700 allows remote code execution via MAC filter
CVE-2026-108892 · published today
Summary
The Linksys E1700 router can be tricked into running unwanted code when its MAC‑filter feature is used. An attacker can send specially crafted data to the router over the network and cause it to crash or take control. Apply the latest firmware update from Linksys or disable the MAC‑filter function until a fix is available.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| linksys | e1700 | 1.0.0.4.003 |
Original advisory text
Linksys E1700 Mac Filter ssid1MACFilter stack-based overflow
A vulnerability was determined in Linksys E1700 1.0.0.4.003. This vulnerability affects the function ssid1MACFilter of the file /goform/ssid1MACFilter of the component Mac Filter. This manipulation of the argument newap_text_%d causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Internet-facing
3 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically (estimated)
- Gives an attacker full control (estimated)
Severity
9.3
Critical
Type
CWE-121Stack-based Buffer Overflow
CWE-119Buffer Overflow
Timeline
Published12 Oct 2026
Updated12 Oct 2026
First seen12 Oct 2026
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