CVE-2022-29072
CVE-2022-29072 is a high-severity vulnerability in 7-zip with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 7.2
- EPSS exploit prediction: 2% (72nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: 7-zip
- Published:
- Last modified:
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
Frequently asked questions
- What is CVE-2022-29072?
- 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
- How severe is CVE-2022-29072?
- CVE-2022-29072 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-29072 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-29072?
- CVE-2022-29072 affects 7-zip. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-29072?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2022-29072 published?
- CVE-2022-29072 was published on 2022-04-15 and last updated on 2026-06-17.
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
Affected products (1)
- cpe:2.3:a:7-zip:7-zip:*:*:*:*:*:*:*:*
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