Dell Wyse 5470 Firmware

Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.

Dell Client Consumer and Commercial Platforms contain an Arbitrary File Overwrite Vulnerability. The vulnerability is limited to the Dell Firmware Update Utility during the time window while being executed by an administrator. During this time window, a locally authenticated low-privileged malicious user could exploit this vulnerability by tricking an administrator into overwriting arbitrary files via a symlink attack. The vulnerability does not affect the actual binary payload that the update utility delivers.

Prior Dell BIOS versions contain an Improper Authentication vulnerability. An unauthenticated attacker with physical access to the system could potentially exploit this vulnerability by bypassing drive security mechanisms in order to gain access to the system.

Dell Client Platform BIOS contains an Out-of-bounds Write vulnerability in an externally developed component. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Information tampering.