criticalZero-Day
SonicWall SMA 1000 Series Zero-Day Vulnerabilities Exploited in the Wild
Two critical flaws, including a pre-authentication SSRF bug, allow remote compromise of VPN appliances; patches released
CyberIntel Desk1 min read
Key Takeaways
- Two zero-day vulnerabilities (CVE-2026-83548 and CVE-2026-83549) are being actively exploited in the wild targeting SonicWall SMA 1000 series VPN appliances.
- CVE-2026-83548 is a pre-authentication SSRF flaw with the maximum CVSS score of 10.0.
- The vulnerabilities may be chained together to enable remote code execution or unauthorized access.
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The Cybersecurity and Infrastructure Security Agency (CISA) has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation. CVE-2026-88771 involves improper input validation and CVE-2026-88772 involves improper restriction of operations within the bounds of a memory buffer, both affecting Citrix NetScaler products. The additions trigger remediation requirements under Binding Operational Directive 26-04 for Federal Civilian Executive Branch agencies.
CISA Advisories2 min read
