SonicWall security advisory (AV26-872) – Update 1
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Serial Number: AV26-872 Date: September 2, 2026 As of September 1, 2026, SonicWall is affected by a vulnerability in the following product: SMA1000 - 6210, 7210, 8200v 12.4.3-03453 (platform-hotfix) and older versions 12.5.0-02835 (platform-hotfix) and older versions SonicWall indicates that CVE-2026-83548 and CVE-2026-83549 are being exploited. Update 1 On September 2, 2026, Cybersecurity and Infrastructure Security Agency (CISA) added CVE-2026-83548 and CVE-2026-83549 to their Known Exploited Vulnerabilities (KEV) Database. The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available. Security Advisory SonicWall Security Advisories CISA KEV: CVE-2026-83548 CISA KEV: CVE-2026-83549
CSIRTS triage
- What
- SonicWall SMA1000 appliances contain multiple vulnerabilities including OS command injection and server-side request forgery.
- Who is affected
- Deployments of SonicWall SMA1000 models 6210, 7210, 8200v running versions 12.4.3-03453 and earlier or 12.5.0-02835 and earlier.
- Urgency
- Critical; both CVE-2026-83548 and CVE-2026-83549 are actively being exploited in the wild.
- Action
- Apply the latest platform-hotfix updates as they become available from SonicWall.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://cyber.gc.ca/en/alerts-advisories/sonicwall-security-advisory-av26-872
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation confirmedCVE-2026-83548Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 18% of all EPSS-scored CVEs.
- Exploitation confirmedCVE-2026-83549Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 58% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-83548 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-83549 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- highexploitedCISA Adds Seven Known Exploited Vulnerabilities to Catalogcisa
- criticalexploited[NEW] [critical] SonicWall SMA: Multiple vulnerabilitiescert-bund
- unknownexploitedNCSC-2026-0337 [1.00] [H/H] Zero-Day vulnerabilities patched in SonicWall SMA1000 Appliancencsc-nl
- criticalexploitedCVE-2026-83549: SonicWall SMA1000 Appliances OS Command Injection Vulnerabilitycisa-kev
- unknownexploitedMultiple vulnerabilities in SonicWall Secure Mobile Access (02 September 2026)cert-fr-alerte
- unknownexploitedMultiple vulnerabilities in SonicWall products (02 September 2026)cert-fr-avis
- criticalexploitedCVE-2026-83548: SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerabilitycisa-kev
- highexploitedCVE-2026-83549: Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Com…nvd
- criticalexploitedCVE-2026-83548: A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface d…nvd
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