CVE-2022-29072: 7-zip Out-of-bounds Write

Vulnerability summary

CVE-2022-29072 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in 7-zip. EPSS estimates a 1.54% chance of exploitation in the next 30 days, higher than 74.6% of scored vulnerabilities. 3 public exploits are recorded.

Timeline

1. 15-04-2022
   PublishedVulnerability first disclosed.
2. 09-06-2025
   Last modifiedVulnerability information updated.

Description

7-Zip through 21.07 on Windows allows privilege escalation and command execution when a file with the .7z extension is dragged to the Help>Contents area. This is caused by misconfiguration of 7z.dll and a heap overflow. The command runs in a child process under the 7zFM.exe process. NOTE: multiple third parties have reported that no privilege escalation can occur

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.