Path Traversal in Py7zr Project
CVE-2022-44900
A directory traversal vulnerability in the SevenZipFile.extractall() function of the python library py7zr v0.20.0 and earlier allows attackers to write arbitrary files via extracting a crafted 7z file.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.023 (82.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: +0.001
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/miurahr/py7zr/commit/1bb43f17515c7f69673a1c88ab9cc72a7bbef406 (Patch, Third Party Advisory)
- packetstormsecurity.com/files/170127/py7zr-0.20.0-Directory-Traversal.html (Exploit, VDB Entry, Third Party Advisory)
- lessonsec.com/cve/cve-2022-44900/ (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-44900?
- CVE-2022-44900 is a critical-severity vulnerability in Py7zr Project, classified under Path Traversal. CVSS score: 9.1/10. Published 2022-12-06.
- How severe is CVE-2022-44900?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2022-44900 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.