CVE-2024-40765Network attack vector

Crash or code execution via crafted IKEv2 payload

Published Jan 9, 2025 · Updated Jan 9, 2025

Integer-based buffer overflow in SonicWall SonicOS allows remote attackers to crash the firewall or execute arbitrary code via IKEv2 payloads. Processing a specially crafted IKEv2 payload triggers the overflow, but SonicWall has not disclosed the affected function or integer calculation. No authentication or user interaction is required, but exploitation depends on undisclosed specific conditions and can interrupt firewall service or execute code.

CVSS severity5.3
Medium
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer-based buffer overflow in SonicWall SonicOS allows remote attackers to crash the firewall or execute arbitrary code via IKEv2 payloads. Processing a specially crafted IKEv2 payload triggers the overflow, but SonicWall has not disclosed the affected function or integer calculation. No authentication or user interaction is required, but exploitation depends on undisclosed specific conditions and can interrupt firewall service or execute code.

The record

CVE
CVE-2024-40765
Published
Jan 9, 2025
Updated
Jan 9, 2025
Vendor
SonicWall
Product
SonicOS
Classifications
CWE-190, T1499, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 9, 2025Record 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=6.5.4.4-44v-21-2395 and older versions
  2. Affected versionversion=7.0.1-5151 and older versions
  3. Affected versionversion=7.1.1-7051 and older versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SonicWall · SonicOSversion=6.5.4.4-44v-21-2395 and older versions; version=7.0.1-5151 and older versions; version=7.1.1-7051 and older versions

Published CVSS scores

5.3SonicWallCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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
T1499Endpoint Denial of Service
T1190Exploit Public-Facing Application

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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