Threats / SonicWall / CVE-2025-40602
CVE-2025-40602
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
SonicWall SMA1000 appliance vulnerability
SonicWall SMA1000 appliance contains a missing authorization vulnerability enabling privilege escalation in the appliance management console, allowing unauthorized administrative access.
Verdict
Today item — known-exploited.
A missing authorization flaw in SonicWall SMA1000 permits unauthenticated or low-privileged users to escalate privileges within the management console. Active exploitation in the wild indicates immediate risk to affected deployments.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
10 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-12-17).
Probability (EPSS)
EPSS 0.0191 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: SonicWall, SMA1000 appliance. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-862 Missing Authorization, CWE-250 Excessive Privileges — weakness family: Authorization / access control.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I identify the SMA1000 management console endpoint and probe for authorization enforcement gaps.
Business
Attackers gain direct access to appliance administration functions without proper credential validation.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I escalate my privileges by bypassing authorization checks to assume administrative role.
Business
Full control of the security appliance is compromised, enabling configuration tampering and policy bypass.
3
Lateral reach — past segmentation narrative 3
Attacker
I modify firewall rules, disable logging, or extract sensitive network traffic data.
Business
Network perimeter security is neutralized; attackers gain visibility into protected infrastructure and can pivot deeper into the organization.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05
Coverage & confidence
— what we know, and what we don’tEstablished (cited)
Coverage gaps — stated, not hidden
Disclosure & credit2
Catalogued by sonicwallCNA
Credited with finding itClément Lecigne and Zander Work of Google Threat Intelligence Groupreporter