Two recently disclosed SonicWall SMA 1000 vulnerabilities – CVE-2026-15409 and CVE-2026-15410 – were exploited in zero-day attacks for weeks, allowing threat actors to install custom malware on vulnerable VPN appliances, Volexity researchers revealed. The intrusions began as early as June 22, 2026, well before the flaws became public. According to the researchers, the attackers’ goal was stealthy, long-term access: once inside, the intruders could reach stored or cached credentials, capture network traffic, and potentially intercept … More → The post SonicWall SMA zero-days were exploited weeks before disclosure appeared first on Help Net Security .

SonicWall warns that threat actors have been exploiting two SMA1000 vulnerabilities, tracked as CVE-2026-15409 and CVE-2026-15410, in zero-day attacks and urges customers to install the newly released security updates. [...]

SonicWall has fixed two actively exploited vulnerabilities (CVE-2026-15409, CVE-2026-15410) affecting its Secure Mobile Access (SMA) 1000 Series appliances, and is urging customer organizations to upgrade to a fixed firmare version and search for evidence of potential compromise. If the outlined indicators of compromise are present on the system, the company advises re-imaging (hardware) or re-deploying (virtual) appliances, changing user and administrator passwords, and resetting TOTP tokens. The vulnerabilities SonicWall SMA 1000 series appliances are secure … More → The post SonicWall SMA appliances targeted in zero-day attacks (CVE-2026-15409, CVE-2026-15410) appeared first on Help Net Security .

SonicWall SMA1000 Appliances contain a server-side request forgery vulnerability that could allow a remote unauthenticated attacker to potentially cause the appliance to make requests to unintended location.