SSRF in SonicWall Sma1000
CVE-2026-83548
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.080 (94.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.047 · newest: 0.080 · change: +0.034
Affected products
- SonicWall Sma1000 — versions 12.4.3-03453 (platform-hotfix) and older versions, 12.5.0-02835 (platform-hotfix) and older versions
- SonicWall Sma6210 Firmware
- SonicWall Sma7210 Firmware
- SonicWall Sma8200v
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: 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.
Public proof-of-concept exploits
References
- psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0016 (vendor-advisory, Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2026-83548?
- CVE-2026-83548 is a critical-severity vulnerability in SonicWall Sma1000, classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 10.0/10. Published 2026-09-01.
- How severe is CVE-2026-83548?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2026-83548 known to be exploited?
- Yes. CVE-2026-83548 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-09-02), indicating it is being actively exploited. 4 public proof-of-concept repositories are indexed.