What is CVE-2025-40602?

CVE-2025-40602 is a medium-severity vulnerability in SonicWall Sma1000, classified under CWE-250. CVSS score: 6.6/10. Published 2025-12-18.

How severe is CVE-2025-40602?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Is CVE-2025-40602 known to be exploited?

Yes. CVE-2025-40602 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-12-17), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.

Auth bypass in SonicWall Sma1000

CVE-2025-40602

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

Published 2025-12-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.028 (86.0th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.028 · change: +0.007

Affected products

SonicWall Sma1000 — versions 12.4.3-03093 (platform-hotfix) and earlier versions, 12.5.0-02002 (platform-hotfix) and earlier versions
SonicWall Sma6200
SonicWall Sma6200 Firmware
SonicWall Sma6210
SonicWall Sma6210 Firmware
SonicWall Sma7200
SonicWall Sma7200 Firmware
SonicWall Sma7210
SonicWall Sma7210 Firmware
SonicWall Sma8200v

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2025-12-17. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2025-12-24.

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

Public proof-of-concept exploits

References

psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0019 (vendor-advisory, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2025-40602?: CVE-2025-40602 is a medium-severity vulnerability in SonicWall Sma1000, classified under CWE-250. CVSS score: 6.6/10. Published 2025-12-18.
How severe is CVE-2025-40602?: Medium severity. CVSS v3 base score is 6.6 out of 10.
Is CVE-2025-40602 known to be exploited?: Yes. CVE-2025-40602 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-12-17), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.