8.2High

Cesanta Mongoose

CVE-2024-42386

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 produce a segmentation fault on the application.

What this means for your business

  • It affects Cesanta Mongoose. It matters if your company, or a supplier that handles your data, runs it.
  • An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
  • FIRST's prediction model gives it a 0.4% chance of attack attempts being seen in the next 30 days, ranking above 30% of all known flaws.

What to do

  1. 1Check whether your company or your suppliers run Cesanta Mongoose, and which version. The affected versions are listed further down this page.
  2. 2If you do, follow the vendor's guidance. No patch reference has been published yet.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Scoring

CVSS
8.2 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Weakness
CWE-823
Assigned by
prodsec@nozominetworks.com

Dates

Published
2024-11-18
Last modified
2026-09-08
Sources
NVD

Affected products

  • Cesanta Mongoose- 7.14

As listed in the NVD configuration data. Not a statement about your estate.

References