PerimeterClock

Patch-to-exploitation timelines for edge appliances (Fortinet, SonicWall, Ivanti), with detection rules.

CVE-2021-20035: SonicWall SMA100 Appliances OS Command Injection Vulnerability

Vendor: SonicWall
Product: SMA100 Appliances
EPSS: 0.044 (91.3th percentile, 2026-10-30)

Summary

SonicWall SMA100 Appliances are affected by a flaw that lets a remote authenticated attacker inject arbitrary commands as a ‘nobody’ user, potentially leading to code execution. CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 2025-04-16.

Automated summary, checked against CISA and vendor descriptions; not yet reviewed by an analyst.

Timeline

Date Event Source
2025-04-16 Added to CISA KEV (confirmed exploitation) CISA KEV

References

Affected and fixed versions: see the vendor advisory or NVD entry below.