Vulnerability in Microsoft Windows
CVE-2020-15523
In Python 3.6 through 3.6.10, 3.7 through 3.7.8, 3.8 through 3.8.4rc1, and 3.9 through 3.9.0b4 on Windows, a Trojan horse python3.dll might be used in cases where CPython is embedded in a native application. This occurs because python3X.dll may use an invalid search path for python3.dll loading (after Py_SetPath has been used). NOTE: this issue CANNOT occur when using python.exe from a standard (non-embedded) Python installation on Windows.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Microsoft Windows
- NetApp Snapcenter
- Python — versions 3.8.4, 3.9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugs.python.org/issue29778 (Patch, Issue Tracking, Vendor Advisory)
- github.com/python/cpython/pull/21297 (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20210312-0004/ (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2020-15523?
- CVE-2020-15523 is a high-severity vulnerability in Microsoft Windows, classified under Uncontrolled Search Path Element. CVSS score: 7.8/10. Published 2020-07-04.
- How severe is CVE-2020-15523?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-15523 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.