CVE-2022-29072

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-04-15 · updated 2026-06-17
Weakness: CWE-787

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

Affected products

7-Zip: through 21.07

References

http://packetstormsecurity.com/files/166763/7-Zip-21.07-Code-Execution-Privilege-Escalation.html
https://github.com/kagancapar/CVE-2022-29072
https://news.ycombinator.com/item?id=31070256
https://sourceforge.net/p/sevenzip/bugs/2337/
https://www.youtube.com/watch?v=sT1cvbu7ZTA
http://packetstormsecurity.com/files/166763/7-Zip-21.07-Code-Execution-Privilege-Escalation.html
https://github.com/kagancapar/CVE-2022-29072
https://news.ycombinator.com/item?id=31070256
https://sourceforge.net/p/sevenzip/bugs/2337/
https://www.youtube.com/watch?v=sT1cvbu7ZTA

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