SonicWall SMA1000 flaws exploited for RCE
Two chained vulnerabilities in SonicWall SMA1000 SSL VPN appliances are being actively exploited in the wild to achieve remote code execution.
Sourcecisecurity.org — open the original
What to check
- Applies to
- The 2 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- CISA lists CVE-2026-83548 and CVE-2026-83549 as exploited in the wild.
MS-ISAC has issued an advisory covering two vulnerabilities in SonicWall SMA1000 Series appliances, which serve as enterprise secure access and SSL VPN gateways. CVE-2026-83548 is a pre-authentication SSRF flaw in the Work Place interface caused by an unintended alternate access path, allowing an unauthenticated remote attacker to reach sensitive functionality. CVE-2026-83549 is a post-authentication OS command injection vulnerability in the Appliance Management Console (AMC) that permits an authenticated administrator-level attacker to execute arbitrary OS commands. SonicWall PSIRT has confirmed active exploitation of both CVEs in the wild, and chaining them together can lead to full remote code execution and system compromise.
Affected versions include 12.4.3-03453 (platform-hotfix) and older, and 12.5.0-02835 (platform-hotfix) and older. Given confirmed in-the-wild exploitation of an unauthenticated SSRF combined with a command injection flaw on internet-facing VPN gateways, organizations running SMA1000 appliances should treat this as an urgent patching priority. Recommended mitigations include immediate patching after testing, network segmentation to isolate management interfaces, least-privilege enforcement, vulnerability scanning, and exploit protection measures.
Mentioned in this report
Source reporting: https://www.cisecurity.org/advisory/multiple-vulnerabilities-in-sonicwall-sma1000-series-appliances-could-allow-for-remote-code-execution_2026-087
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