CVE-2025-32818Network attack vector

Unauthenticated firewall crash via null pointer dereference

Published Apr 23, 2025 · Updated Apr 23, 2025

Null pointer dereference in SonicWall SonicOS 7.1.1-7040 through 7.1.3-7015 and 8.0.0-8037 and earlier allows remote attackers to crash the firewall. The Virtual Office interface dereferences a null pointer while processing an undisclosed request condition; SonicWall has not published the responsible input or code path. The SSLVPN service must be enabled and reachable, and successful exploitation interrupts firewall service through a crash.

CVSS severity7.5
High
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null pointer dereference in SonicWall SonicOS 7.1.1-7040 through 7.1.3-7015 and 8.0.0-8037 and earlier allows remote attackers to crash the firewall. The Virtual Office interface dereferences a null pointer while processing an undisclosed request condition; SonicWall has not published the responsible input or code path. The SSLVPN service must be enabled and reachable, and successful exploitation interrupts firewall service through a crash.

The record

CVE
CVE-2025-32818
Published
Apr 23, 2025
Updated
Apr 23, 2025
Vendor
SonicWall
Product
SonicOS
Classifications
CWE-476, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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=7.1.1-7040 <=7.1.3-7015
  2. Affected versionversion=8.0.0-8037 and earlier versions

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SonicWall · SonicOSversion=7.1.1-7040 <=7.1.3-7015; version=8.0.0-8037 and earlier versions

Published CVSS scores

7.5CISA-ADPCVSS: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-476NULL Pointer Dereference
T1499Endpoint Denial of Service

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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