SonicWall SMA 1000 appliances under attack via zero-day flaws
SonicWall confirms active exploitation of zero-day SSRF (CVE-2026-83548) and command injection (CVE-2026-83549) flaws in SMA 1000 remote access appliances.
SonicWall confirmed attackers are actively exploiting two previously undisclosed vulnerabilities in SMA 1000 SSL VPN appliances, affecting physical and virtual models 6210, 7210, and 8200v but not SMA 100 appliances or SonicWall firewalls. CVE-2026-83548 is a pre-authentication SSRF in the Appliance Work Place interface allowing remote unauthenticated attackers to gain unauthorized access to sensitive functionality, while CVE-2026-83549 is an OS command injection in the Appliance Management Console that can yield remote code execution under specific conditions for authenticated admins. The vendor urged immediate hotfix deployment, IoC review with technical support, and re-imaging or redeployment plus password and TOTP token resets on confirmed compromise. This is the latest in a series of zero-day attacks against SMA 1000 appliances following waves in late 2025 and June-July 2026.
- CVE-2026-83548: pre-auth SSRF in Appliance Work Place interface, unauthenticated attackers
- CVE-2026-83549: OS command injection in Appliance Management Console, admin-authenticated RCE
- Affects SMA 1000 models 6210, 7210, 8200v; not SMA 100 or SonicWall firewalls
- SonicWall urges hotfix, IoC review, re-imaging, credential and TOTP resets on compromise
- Third zero-day wave against SMA 1000 since late 2025, following June-July 2026 attacks
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
CVE-2026-83548+1 related CVE | Pre-Authentication SSRF in SonicWall SMA1000 Appliance Workplace Interface | 10.0 group max | 8% | KEVPoC ×3 | KEV |
From the original article
1 min read at helpnetsecurity.com
Attackers are exploiting two previously undisclosed vulnerabilities (CVE-2026-83548, CVE-2026-83549) in SonicWall SMA 1000 appliances, the vendor confirmed on Tuesday. The SonicWall SMA 1000 series is a line of secure remote access appliances (SSL VPN gateways) built for scale. They are used regularly by medium to large enterprises, government agencies, and managed security service providers.
By @zeljkazorz · helpnetsecurity.com
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