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Known exploited vulnerability

CVE-2025-40602

mediumCVSS 3.1 6.6In CISA KEVEPSS 2.8%Published · SonicWall

The short answer

CVE-2025-40602 affects SonicWall SMA1000 and is rated medium (CVSS 6.6). CISA added it to the Known Exploited Vulnerabilities catalog on 2025-12-17: attackers are using it, so patch it first.

What it is

A local privilege escalation vulnerability due to insufficient authorization in the SonicWall SMA1000 appliance management console (AMC).

Weakness: CWE-250, CWE-862.

Severity

6.6 medium

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploited (CISA KEV)

Yes, since Dec 17, 2025

Federal due date Dec 24, 2025

EPSS, next 30 days

2.8%

Higher than 86% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
High
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

What CISA says to do

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable

Affected products

SMA1000. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2025-40602 being exploited?

Yes. CISA added CVE-2025-40602 to its Known Exploited Vulnerabilities catalog on 2025-12-17, with a federal remediation due date of 2025-12-24.

How do I fix CVE-2025-40602?

CISA's required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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