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**Name of the Vulnerable Software and Affected Versions** TP-Link Omada ER605 (affected versions not specified) **Description** This issue allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Omada ER605 routers. The flaw exists within the handling of the `username` parameter provided to the "/usr/bin/pppd" endpoint, due to the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this to execute code in the context of root. Devices are only vulnerable if configured to use a PPTP VPN with LDAP authentication. **Recommendations** As a temporary workaround, consider disabling the use of PPTP VPN with LDAP authentication until a patch is available. Restrict access to the `/usr/bin/pppd` endpoint to minimize the risk of exploitation. Avoid using the `username` parameter in the affected endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Lexmark devices (affected versions not specified) **Description** A buffer overflow vulnerability has been identified in the postscript interpreter of Lexmark devices. This issue allows for remote code execution. The vulnerability was identified through 2021-12-07. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Delta Electronics TPEditor versions 1.97 and prior **Description** A write-what-where condition may be exploited by processing a specially crafted project file, potentially allowing an attacker to read or modify information, execute arbitrary code, and/or crash the application. **Recommendations** For Delta Electronics TPEditor versions 1.97 and prior, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Delta Electronics TPEditor versions 1.97 and prior **Description** The issue is related to improper input validation. It can be exploited by processing a specially crafted project file that is not validated when the data is entered by a user. Successful exploitation may allow an attacker to read or modify information, execute arbitrary code, and/or crash the application. **Recommendations** For versions 1.97 and prior, consider avoiding the use of untrusted project files until a patch is available. As a temporary workaround, restrict the ability to open or process project files from untrusted sources to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.