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SonicWall has released a security advisory to address vulnerabilities affecting SonicWall Secure Mobile Access (SMA) 100 series appliances. A remote attacker could exploit these vulnerabilities to take control of an affected system. SMA 100 series appliances provide an organization’s employees with remote access to internal resources. Note: although there are currently no reports of these vulnerabilities being exploited in the wild, in July 2021, CISA warned of threat actors actively targeting a known, previously patched, vulnerability in SonicWall SMA 100 series appliances.

CERT Bulgaria encourages users and administrators to review the SonicWall security advisory and apply the necessary firmware updates as soon as possible.

https://www.sonicwall.com/support/product-notification/product-security-notice-sma-100-series-vulnerability-patches-q4-2021/211201154715443/