CVE-2022-43343

HIGH

N-Prolog 1.91 - Buffer Overflow in gettoken() Function

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2022-43343. PoCs published by Halcy0nic.

AI-analyzed exploit summary This repository provides a proof-of-concept for CVE-2022-43343, a global buffer overflow vulnerability in N-Prolog v1.91's gettoken() function. The PoC demonstrates a crash via a crafted input file, with detailed steps for reproduction and analysis using AddressSanitizer.

Description

N-Prolog v1.91 was discovered to contain a global buffer overflow vulnerability in the function gettoken() at Main.c.

Exploits (1)

nomisec WORKING POC 1 stars
by Halcy0nic · poc
https://github.com/Halcy0nic/CVE-2022-43343

This repository provides a proof-of-concept for CVE-2022-43343, a global buffer overflow vulnerability in N-Prolog v1.91's gettoken() function. The PoC demonstrates a crash via a crafted input file, with detailed steps for reproduction and analysis using AddressSanitizer.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: N-Prolog v1.91
No auth needed
Prerequisites: Vulnerable version of N-Prolog (v1.91) · Ability to execute the binary with the crafted input file
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Exploit, Issue Tracking, Third Party Advisory
https://github.com/sasagawa888/nprolog/issues/75

Scores

CVSS v3 7.5
EPSS 0.0108
EPSS Percentile 60.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (1)
n-prolog_project/n-prolog 1.91
Published Nov 08, 2022
Tracked Since Feb 18, 2026