SonicWall
SonicWall urges admins to patch VPN flaw exploited in attacks
SonicWall has urged its customers to patch three security vulnerabilities affecting its Secure Mobile Access (SMA) appliances, one of them tagged as exploited in attacks. Discovered and reported by Rapid7 cybersecurity researcher Ryan Emmons, the three security flaws (CVE-2025-32819, CVE-2025-32820, and CVE-2025-32821) can be chained by attackers to gain remote code execution as root and compromise […]
SonicWall warns of more VPN flaws exploited in attacks
Cybersecurity company SonicWall has warned customers that two older vulnerabilities impacting its Secure Mobile Access (SMA) appliances are now being actively exploited in attacks. On Tuesday, SonicWall updated security advisories for the CVE-2023-44221 and CVE-2024-38475 security flaws to tag the two vulnerabilities as “potentially being exploited in the wild.” CVE-2023-44221 is described as a high-severity command injection vulnerability caused […]
SonicWall SMA VPN devices targeted in attacks since January
A remote code execution vulnerability affecting SonicWall Secure Mobile Access (SMA) appliances has been under active exploitation since at least January 2025, according to cybersecurity company Arctic Wolf. This security flaw (CVE-2021-20035) impacts SMA 200, SMA 210, SMA 400, SMA 410, and SMA 500v devices and was patched almost four years ago, in September 2021, […]
CISA tags SonicWall VPN flaw as actively exploited in attacks
On Wednesday, CISA warned federal agencies to secure their SonicWall Secure Mobile Access (SMA) 100 series appliances against attacks exploiting a high-severity remote code execution vulnerability. Tracked as CVE-2021-20035, this security flaw impacts SMA 200, SMA 210, SMA 400, SMA 410, and SMA 500v (ESX, KVM, AWS, Azure) devices. Successful exploitation can allow remote threat actors […]
SonicWall firewall bug targeted in attacks after PoC exploit release
Attackers are now targeting an authentication bypass vulnerability affecting SonicWall firewalls shortly after the release of proof-of-concept (PoC) exploit code. This security flaw (CVE-2024-53704), tagged by CISA as critical severity and found in the SSLVPN authentication mechanism, impacts SonicOS versions 7.1.x (up to 7.1.1-7058), 7.1.2-7019, and 8.0.0-8035, used by multiple models of Gen 6 and […]
SonicWall firewall exploit lets hackers hijack VPN sessions, patch now
Security researchers at Bishop Fox have published complete exploitation details for the CVE-2024-53704 vulnerability that allows bypassing the authentication mechanism in certain versions of the SonicOS SSLVPN application. The vendor warned about the high exploitation possibility of the flaw in a bulletin on January 7, urging administrators to upgrade their SonicOS firewalls’ firmware to address […]
SonicWall warns of SMA1000 RCE flaw exploited in zero-day attacks
SonicWall is warning about a pre-authentication deserialization vulnerability in SonicWall SMA1000 Appliance Management Console (AMC) and Central Management Console (CMC), with reports that it has been exploited as a zero-day in attacks. The flaw, tracked as CVE-2025-23006 and rated critical (CVSS v3 score: 9.8), could allow remote unauthenticated attackers to execute arbitrary OS commands under specific […]
SonicWall urges admins to patch exploitable SSLVPN bug immediately
SonicWall is emailing customers urging them to upgrade their firewall’s SonicOS firmware to patch an authentication bypass vulnerability in SSL VPN and SSH management that is “susceptible to actual exploitation.” In an email sent to SonicWall customers and shared on Reddit, the firewall vendor says the patches are available as of yesterday, and all impacted customers should install them […]
Over 25,000 SonicWall VPN Firewalls exposed to critical flaws
Over 25,000 publicly accessible SonicWall SSLVPN devices are vulnerable to critical severity flaws, with 20,000 using a SonicOS/OSX firmware version that the vendor no longer supports. These results come from an analysis conducted by cybersecurity firm Bishop Fox, which was motivated by a series of important vulnerabilities disclosed this year impacting SonicWall devices. Vulnerabilities affecting SonicWall […]