Vulnerability in Microsoft Windows
CVE-2021-33436
NoMachine for Windows prior to version 6.15.1 and 7.5.2 suffer from local privilege escalation due to the lack of safe DLL loading. This vulnerability allows local non-privileged users to perform DLL Hijacking via any writable directory listed under the system path and ultimately execute code as NT AUTHORITY\SYSTEM.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (19.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
References
- github.com/active-labs/Advisories/blob/master/2021/ACTIVE-2021-001.md (Third Party Advisory)
- knowledgebase.nomachine.com/TR05S10236 (Vendor Advisory)
- knowledgebase.nomachine.com/SU05S00224 (Release Notes, Vendor Advisory)
- knowledgebase.nomachine.com/SU05S00223 (Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-33436?
- CVE-2021-33436 is a high-severity vulnerability in Microsoft Windows. CVSS score: 7.3/10. Published 2022-04-28.
- How severe is CVE-2021-33436?
- High severity. CVSS v3 base score is 7.3 out of 10.