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vulnerability

CVE-2025-40602

6.6
Medium
KEV · Exploited in wildEPSS 3%Patch available

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

exploited
Yes, in CISA KEV since 17 Dec 2025fix by 24 Dec 2025 (CISA deadline for US federal agencies)unvetted proof-of-concept code on github
fix
Patch available see the advisory in the references
likelihood
EPSS 2.8%
Published 18 Dec 2025Analysed here 2 Nov 2026CVSS scored by CISA

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

triage
server-sideruntimeWAF can block: noAV · networkCWE-250· Common WeaknessCWE-862· Missing Authorization

Can a WAF block it? No. The vulnerability requires local privilege escalation with existing high privileges and does not involve HTTP requests, so a web application firewall cannot detect or block the attack.

Also consider: patch

Based on an AI reading of the CVE description, and no vendor rule found yet. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.

cvss vector
attack vectornetworkattack complexityhighprivileges requiredhighuser interactionnonescopeunchangedconfidentialityhighintegrityhighavailabilityhigh
CVSS 3.1 · CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
common questions

Is CVE-2025-40602 being exploited?

Yes. CVE-2025-40602 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.

How severe is CVE-2025-40602?

CVE-2025-40602 is rated Medium with a CVSS score of 6.6. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2025-40602?

Yes. A fix has been recorded for CVE-2025-40602. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2025-40602 affect?

CVE-2025-40602 affects sonicwall:sma6200_firmware, sonicwall:sma6210_firmware, sonicwall:sma7200_firmware, sonicwall:sma7210_firmware, and 1 further product or version. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
sonicwall:sma6200_firmwaresonicwall:sma6210_firmwaresonicwall:sma7200_firmwaresonicwall:sma7210_firmwaresonicwall:sma8200v
affected versions
SonicWall SMA1000
  • affected12.4.3-03093 (platform-hotfix) and earlier versions
  • affected12.5.0-02002 (platform-hotfix) and earlier versions

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

public exploits

Unvetted proof-of-concept code on GitHub: 2 GitHub proofs of concept

GitHub proofs of concept

Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.

cisa ssvc

exploitation
active
automatable
no
technical impact
total

Assessed by CISA 18 Dec 2025 (SSVC 2.0.3).

timeline

  1. 17 Dec 2025Added to CISA KEV (exploited in the wild)
  2. 18 Dec 2025First proof-of-concept repository on GitHub (unvetted) · 1 day later
  3. 18 Dec 2025Published · same day later
  4. 18 Dec 2025CISA SSVC assessment: exploitation active · same day later
  5. 18 Dec 2025CVE record last updated · same day later
  6. 24 Dec 2025CISA remediation due date (US federal agencies) · 6 days later
  7. 2 Nov 2026Analysed by vulneraibility.com · 314 days (about 10 months) later
how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
2 references in the CVE record: 1 advisory, 1 link

sources

  • CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
  • NVD: CVSS and CPE data
  • CISA KEV catalog: exploitation, date added, due date
  • CISA Vulnrichment (ADP): SSVC decision points
  • FIRST EPSS: exploit probability and percentile
  • PoC-in-GitHub: GitHub repositories that claim a proof of concept
  • Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.
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