---
id: CVE-2024-42391
title: >-
  Use of Out-of-range Pointer Offset vulnerability in Cesanta Mongoose Web
  Server v7.14 allows an attacker to send an unexpected TLS packet and force the
  application to read unintended heap memory space.
summary: >-
  Use of Out-of-range Pointer Offset vulnerability in Cesanta Mongoose Web
  Server v7.14 allows an attacker to send an unexpected TLS packet and force the
  application to read unintended heap memory space.
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'
cwe:
  - CWE-823
vendor: cesanta
product: mongoose
affected:
  - mongoose <= 7.14
published: '2024-11-18'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T09:17:18.303'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-42391'
references:
  - url: >-
      https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2024-42391
    label: prodsec@nozominetworks.com
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-142885.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-11-18T13:35:32.284035Z'
epss: 0.00283
epssPercentile: 0.18516
ingestedAt: '2026-09-08T09:30:05.798Z'
---

## Overview

Use of Out-of-range Pointer Offset vulnerability in Cesanta Mongoose Web Server v7.14 allows an attacker to send an unexpected TLS packet and force the application to read unintended heap memory space.

## Affected

- `mongoose <= 7.14`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.