CVE-2022-34403: dell alienware_m15_r6_firmware Stack-based Buffer Overflow

Vulnerability summary

CVE-2022-34403 is a high (CVSS 8.8) Stack-based Buffer Overflow vulnerability in dell alienware_m15_r6_firmware. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.4% of scored vulnerabilities.

Timeline

1. 01-02-2023
   PublishedVulnerability first disclosed.
2. 26-03-2025
   Last modifiedVulnerability information updated.

Description

Dell BIOS contains a Stack based buffer overflow vulnerability. A local authenticated attacker could potentially exploit this vulnerability by using an SMI to send larger than expected input to a parameter to gain arbitrary code execution in SMRAM.

• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.