CVE-2022-44311

HIGH

html2xhtml v1.3 - Memory Corruption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2022-44311. PoCs published by DesmondSanctity, Halcy0nic.

AI-analyzed exploit summary This repository contains a detailed writeup of CVE-2022-44311, an out-of-bounds read vulnerability in html2xhtml v1.3. The vulnerability occurs in the `elm_close` function in `procesador.c` and can lead to information disclosure or DoS via a crafted HTML file.

Description

html2xhtml v1.3 was discovered to contain an Out-Of-Bounds read in the function static void elm_close(tree_node_t *nodo) at procesador.c. This vulnerability allows attackers to access sensitive files or cause a Denial of Service (DoS) via a crafted html file.

Exploits (2)

nomisec WRITEUP 2 stars
by DesmondSanctity · poc
https://github.com/DesmondSanctity/CVE-2022-44311

This repository contains a detailed writeup of CVE-2022-44311, an out-of-bounds read vulnerability in html2xhtml v1.3. The vulnerability occurs in the `elm_close` function in `procesador.c` and can lead to information disclosure or DoS via a crafted HTML file.

Classification
Writeup 100%
Attack Type
Info Leak | Dos
Complexity
Moderate
Reliability
Reliable
Target: html2xhtml v1.3
No auth needed
Prerequisites: A crafted HTML file · Access to the target system to execute html2xhtml
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 1 stars
by Halcy0nic · poc
https://github.com/Halcy0nic/CVE-2022-44311

This PoC demonstrates an out-of-bounds read vulnerability in html2xhtml v1.3, leading to a segmentation fault and potential DoS via a crafted HTML file. The vulnerability is confirmed using Valgrind and GDB, showing invalid memory access in the `elm_close` function.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: html2xhtml v1.3
No auth needed
Prerequisites: vulnerable version of html2xhtml (v1.3) · crafted HTML file
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Exploit, Issue Tracking, Third Party Advisory
https://github.com/jfisteus/html2xhtml/issues/19

Scores

CVSS v3 8.1
EPSS 0.0106
EPSS Percentile 60.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-125
Status published
Products (1)
html2xhtml_project/html2xhtml 1.3
Published Nov 08, 2022
Tracked Since Feb 18, 2026