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Zywall usg2011/8/2023 ![]() The security updates should be installed immediatly, as the vulnerabilities are exploited by attackers in the wild (even though Zyxel has not published any details about the vulnerabilities). Zyxel has investigated the vulnerabilities and discloses subsequent firewall and VPN products as vulnerable or provides appropriate updates to close the vulnerabilities. In the configuration menu there is an option for 'Quick Setup'. CVE-2023-33010: A buffer overflow vulnerability in the ID processing function in some firewall versions could allow an unauthenticated attacker to cause DoS conditions and even remote code execution on an affected device. USG20W-VPN USG2200-VPN Wizard Setup Login to the ZyWALL web configuration setup and go to the Configuration menu.CVE-2023-33009: A buffer overflow vulnerability in the notification function in some firewall versions could allow an unauthenticated attacker to cause denial of service (DoS) conditions and even remote code execution on an affected device.The vulnerabilities in question are as follows: Users are advised to install these patches for optimal protection. In the Zyxel security advisory for multiple buffer overflow vulnerabilities of firewalls security advisory, the manufacturer reports the release of patches for its firewall products that are affected by multiple buffer overflow vulnerabilities. The tweet addresses Zyxel's current security warning dated May 24, 2023. ![]() I was alerted to the following tweet by blog reader Patrik Stolz (thanks for that) on Twitter.
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