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SonicWall SMA1000 Appliances' Server-Side Request Forgery Allows Unauthenticated Remote Attackers to Reach Internal Services and Compromise the Secure Mobile Access Gateway; CISA's September 5th KEV Deadline Has Passed

Last refreshed2026-09-27

Status: KEV  |  Advisory ID: CVE-2026-83548

Key Details

CVECVE-2026-83548
Vulnerability NameSonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
CVSS Score / Version10.0 (Critical) / CVSS v3.1
Updated2026-09-22
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS Proseattack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected productsSonicWall SMA1000 Appliances, SonicWall SMA8200V, SonicWall SMA6210 Firmware, and SonicWall SMA7210 Firmware
Exploitation statusListed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation.
Classified asCWE-918 (Server-Side Request Forgery (SSRF))
KEV listingAdded to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-09-02.
Exploitation prediction (EPSS)8.76% probability of exploitation in the next 30 days (95% percentile) -- FIRST.org's EPSS model.
Federal remediation deadline2026-09-05 (CISA KEV, Binding Operational Directive).

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
SonicWallSMA1000 Appliances
SonicWallSMA8200V
SonicWallSMA6210 Firmware
SonicWallSMA7210 Firmware
SubsystemsIndustrial Network - Routers/Firewalls, PLC/PAC/RTU
SectorsMulti-sector

What to Know

A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. A remote unauthenticated attacker could potentially exploit this vulnerability to gain unauthorized access to sensitive functionality and perform unauthorized operations.

What to Do

Monitor SonicWall's web page for any future patch releases. See vendor advisory link below.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-83548
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-83548
Vendor advisoryhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0016

KEV Required Action

FieldValue
KEV Linkhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog
Date Added to KEV2026-09-02
Required Action Due Date2026-09-05
Required ActionApply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

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