CVE-2026-83548
SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 5 September 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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.
- CVSS 3.1
- 10.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 8.04% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 2 September 2026 · due 5 September 2026
- Weakness
- CWE-441, CWE-918
- Affected
- sonicwall/sma8200v · sonicwall/sma6210 firmware · sonicwall/sma7210 firmware
- Source
- PSIRT@sonicwall.com
EPSS moved from 8.8% on 24 September 2026 to 8.0% on 29 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
CISA notes
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. https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0016 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-83548
References
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0016Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-83548US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.