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2.1
CVE-2026-96676: Fast FAC1900R uhttpd can be crashed remotely
CVE-2026-96676 · published 26 days ago
Summary
The Fast FAC1900R router’s web server component (uhttpd) contains a flaw that can cause it to overflow memory and stop working when specially crafted data is sent. An attacker from anywhere on the internet could trigger this and potentially disrupt the device. Apply the vendor’s latest firmware update or disable the affected web service 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 |
|---|---|---|
| fast | fac1900r | 20190827_2.0.2 |
Original advisory text
Fast FAC1900R uhttpd get_alias_name stack-based overflow
A vulnerability was identified in Fast FAC1900R 20190827_2.0.2. The impacted element is the function get_alias_name of the component uhttpd. Such manipulation leads to stack-based buffer overflow. The attack may be performed from remote. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Severity
2.1
Low
Type
CWE-121Stack-based Buffer Overflow
CWE-119Buffer Overflow
Timeline
Published23 Sep 2026
Updated19 Oct 2026
First seen23 Sep 2026
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