Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2024-42391

CVE-2024-42391MEDIUM

Cesanta Mongoose Web Server — Use of Out-of-range Pointer Offset in Mongoose Web Server library

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  L  N  N    5.3   .0028   18.9     —

AFFECTED
  Product              Versions     Fixed
  Mongoose Web Server  unspecified  —

TIMELINE
  Jul 31  Reserved by Nozomi
  Nov 18  Published (CNA: Nozomi)
  Sep 8   RESCORED — CVE-2024-42391 (Cesanta Mongoose Web Server). CVSS 4.3 → 5.3 (NVD).

CWE-823 · CNA: Nozomi · CVSS v3.1 · 2 references · NVD status: Modified

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 31, 2024	Reserved	Reserved by Nozomi
November 18, 2024	Published	Published (CNA: Nozomi)
September 8, 2026	RESCORED	RESCORED — CVE-2024-42391 (Cesanta Mongoose Web Server). CVSS 4.3 → 5.3 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Cesanta	Mongoose Web Server	—	—	—

Weaknesses

CWE-823

References (2)

https://cert-portal.siemens.com/productcert/html/ssa-142885.html
https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2024-42391 [Third Party Advisory]

Authoritative record: CVE-2024-42391 at cve.org

Vendors: cesanta

Weaknesses: CWE-823

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-42391 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.