SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
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…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 3 / 5
- KEV catalog (CISA)02 Sept 2026
- Exploited in EUVD (ENISA)02 Sept 2026
- Used by ransomwareno
- EPSS above 10 %8.0%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: 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.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
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.
Affected products
- 12.4.3-03453 (platform-hotfix) and older versions
- 12.5.0-02835 (platform-hotfix) and older versions
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
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Added to the KEV catalog
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CISA remediation due date
References
Other exploited vulnerabilities from the same vendor
- CVE-2026-83549SonicWall SMA1000 Appliances OS Command Injection Vulnerability4.6 · Actively exploited
- CVE-2026-15410SonicWall SMA1000 Appliances Code Injection Vulnerability5.6 · Actively exploited
- CVE-2026-15409SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability6.6 · Actively exploited
- CVE-2025-40602SonicWall SMA1000 Missing Authorization Vulnerability3.9 · Background exploitation
- CVE-2023-44221SonicWall SMA100 Appliances OS Command Injection Vulnerability7.0 · Background exploitation
- CVE-2021-20035SonicWall SMA100 Appliances OS Command Injection Vulnerability3.9 · Background exploitation