CVE-2024-42384Network attack vector

Remote application crash via malformed TLS packet

Published Nov 18, 2024 · Updated Sep 8, 2026

Integer overflow in Cesanta Mongoose 7.14 and earlier allows remote attackers to crash an application by sending a malformed TLS packet. The public CNA record identifies neither the affected TLS parsing function nor the arithmetic operation that wraps on packet data. No authentication or user interaction is required, and the reported consequence is a segmentation fault that interrupts the embedding application.

CVSS severity7.5
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Cesanta Mongoose 7.14 and earlier allows remote attackers to crash an application by sending a malformed TLS packet. The public CNA record identifies neither the affected TLS parsing function nor the arithmetic operation that wraps on packet data. No authentication or user interaction is required, and the reported consequence is a segmentation fault that interrupts the embedding application.

The record

CVE
CVE-2024-42384
Published
Nov 18, 2024
Updated
Sep 8, 2026
Vendor
Cesanta
Product
Mongoose
Classifications
CWE-190, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=7.14
  2. Affected versionversion=0 <=7.1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Cesanta · Mongooseversion=0 <=7.14; version=0 <=7.1.4
Siemens AG · Reyrolle 7SR5version=0 <V2.70

Published CVSS scores

7.5Nozomi Networks Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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