CVE-2023-26209

LOW

Fortinet FortiDeceptor <3.1.x - DoS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-26209. PoCs published by chessredoffsec.

AI-analyzed exploit summary This repository contains a Python script with a Tkinter GUI that automates sending crafted login requests to exploit CVE-2023-26209. The exploit targets a login endpoint with adjustable payload sizes to test for potential vulnerabilities.

Description

A improper restriction of excessive authentication attempts vulnerability [CWE-307] in Fortinet FortiDeceptor 3.1.x and before allows a remote unauthenticated attacker to partially exhaust CPU and memory via sending numerous HTTP requests to the login form.

Exploits (1)

nomisec WORKING POC
by chessredoffsec · poc
https://github.com/chessredoffsec/CVE-2023-26209

This repository contains a Python script with a Tkinter GUI that automates sending crafted login requests to exploit CVE-2023-26209. The exploit targets a login endpoint with adjustable payload sizes to test for potential vulnerabilities.

Classification
Working Poc 80%
Attack Type
Other
Complexity
Moderate
Reliability
Theoretical
Target: Unknown (likely a web application with a login endpoint)
No auth needed
Prerequisites: Target IP address · Python 3.x · requests library · Tkinter library
devstral-2 · analyzed Feb 19, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 3.7
EPSS 0.0175
EPSS Percentile 74.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-307
Status published
Products (1)
fortinet/fortideceptor 1.0.0 - 3.2.0
Published Mar 09, 2023
Tracked Since Feb 18, 2026