CVE-2026-96676
Received Received - Intake

Stack-Based Buffer Overflow in Fast FAC1900R uhttpd

Vulnerability report for CVE-2026-96676, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-23

Last updated on: 2026-09-23

Assigner: VulDB

Description

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.

CVSS Scores

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Meta Information

Published
2026-09-23
Last Modified
2026-09-23
Generated
2026-09-24
AI Q&A
2026-09-24
EPSS Evaluated
N/A
NVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
fast fac1900r 20190827_2.0.2

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CWE-119 The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Attack-Flow Graph

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Executive Summary

This vulnerability is a stack-based buffer overflow in the Fast FAC1900R device running firmware 20190827_2.0.2. It exists in the get_alias_name function of the uhttpd component. An attacker can exploit this remotely by manipulating input to cause a buffer overflow, potentially leading to arbitrary code execution or system crashes.

Impact Analysis

If exploited, this vulnerability could allow remote attackers to execute arbitrary code on the affected device, gain unauthorized access, or cause denial-of-service conditions. Since the exploit is publicly available, the risk of attack is higher. Users should update firmware or apply mitigations immediately.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with GDPR, HIPAA, or other standards. The vulnerability involves a stack-based buffer overflow in Fast FAC1900R, which could potentially lead to unauthorized access or data breaches. However, without explicit details on data exposure or processing, its compliance impact remains unclear.

Mitigation Strategies

Immediately isolate affected Fast FAC1900R devices from the network to prevent remote exploitation. Disable the uhttpd service if possible or restrict access to trusted IPs. Monitor for unusual activity and apply vendor patches if available. Since the vendor did not respond, consider replacing the device with a supported alternative.

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