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SonicWall · SMA1000 Appliances

CVE-2026-83548

SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability

Exploited in attacks Critical 10.0 Attack chance: 8.0%
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What it is

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.

CISA: SonicWall SMA1000 Appliances contains a server-side request forgery vulnerability that could allow a remote unauthenticated attacker to gain unauthorized access to sensitive functionality and perform unauthorized operations.

What to do

Apply 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.

Deadline for US federal agencies: September 5, 2026

Added to the CISA list
September 2, 2026
Published
September 1, 2026
Severity
Critical 10.0 CVSS 3.1
Chance of attacks in the next 30 days (EPSS)
8.0% in the top 5.2% of all known vulnerabilities
Weakness
CWE-918 CWE-441
More details
NVD · CVE.org · CISA

More exploited flaws from SonicWall

AddedVulnerabilityProductSeverityAttack chance
Sep 2, 2026OS Command InjectionCVE-2026-83549SMA1000 AppliancesHigh 7.89.9%
Jul 14, 2026Server-Side Request ForgeryCVE-2026-15409used by ransomwareSMA1000 AppliancesCritical 10.06.8%
Jul 14, 2026Code InjectionCVE-2026-15410used by ransomwareSMA1000 AppliancesHigh 7.212%
Jan 24, 2025DeserializationCVE-2025-23006used by ransomwareSMA1000 AppliancesCritical 9.823%
Dec 17, 2025SMA1000 Missing AuthorizationCVE-2025-40602SMA1000 applianceMedium 6.62.8%
May 1, 2025OS Command InjectionCVE-2023-44221SMA100 AppliancesHigh 7.276%
Apr 16, 2025OS Command InjectionCVE-2021-20035SMA100 AppliancesMedium 6.54.4%
Feb 18, 2025SSLVPN Improper AuthenticationCVE-2024-53704used by ransomwareSonicOSHigh 8.295%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.