← gociux.comall exploited CVEs

Exploited vulnerability · CISA KEV

Is CVE-2025-40602 exploited? Yes: in CISA KEV since 17 Dec 2025

Gociux · SonicWall SMA1000 appliance · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-40602, SonicWall SMA1000 Missing Authorization Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 17 Dec 2025. It affects SonicWall SMA1000 appliance, an internet-facing product of the kind attackers use for initial access. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 17 Dec 2025
ransomwareNot knownno confirmed use
EPSSbelow top 10%lower predicted activity right now (it is still confirmed exploited)
severity6.6CVSS 3.1 · medium
US federal due24 Dec 2025BOD 22-01 deadline

What it is

SonicWall SMA1000 contains a missing authorization vulnerability that could allow for privilege escalation appliance management console (AMC) of affected devices.

VendorSonicWall (20 exploited CVEs in KEV)
ProductSMA1000 appliance
VulnerabilitySonicWall SMA1000 Missing Authorization Vulnerability
WeaknessCWE-862, CWE-250
Published18 Dec 2025
Added to KEV17 Dec 2025
Reported by (CNA)sonicwall

What to do

  1. Check whether you run it. Look for SMA1000 appliance in your asset inventory, including appliances and cloud images. Stack check lists every exploited SonicWall CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 18 Dec 2025.
  4. Get told next time. Email alerts when CISA adds a CVE for SonicWall.

References

Questions

Is CVE-2025-40602 being exploited?

Yes. CISA added CVE-2025-40602 to the Known Exploited Vulnerabilities catalog on 17 Dec 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2025-40602 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2025-40602?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable Check SonicWall's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected SMA1000 appliance and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in December 2025 · SonicWall scorecard · act-now radar.

Running SonicWall in a regulated environment?

We check exposure across your estate, patch or mitigate with your team, and set up detection for what attackers do after exploiting it.

Get in touch →