Vulnerability in Microsoft Windows
CVE-2021-22921
Node.js before 16.4.1, 14.17.2, and 12.22.2 is vulnerable to local privilege escalation attacks under certain conditions on Windows platforms. More specifically, improper configuration of permissions in the installation directory allows an attacker to perform two different escalation attacks: PATH and DLL hijacking.
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: 0.074 (94.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.074 · newest: 0.074 · change: 0.000
Affected products
- Microsoft Windows
- Node.js Node — versions 4.0, 5.0, 6.0
- Node.js
- Siemens Sinec Infrastructure Network Services
Weakness classification (CWE)
References
- nodejs.org/en/blog/vulnerability/july-2021-security-releases/ (Patch, Release Notes, Vendor Advisory)
- hackerone.com/reports/1211160 (Exploit, Third Party Advisory)
- security.netapp.com/advisory/ntap-20210805-0003/ (Third Party Advisory)
- cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-22921?
- CVE-2021-22921 is a high-severity vulnerability in Microsoft Windows, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2021-07-12.
- How severe is CVE-2021-22921?
- High severity. CVSS v3 base score is 7.8 out of 10.