Privilege escalation in Microsoft Windows 10
CVE-2021-1657
Windows Fax Compose Form Remote Code Execution Vulnerability
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.6% 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 10 — versions 20h2, 1607, 1803
- Microsoft Windows 10 Version 1507 — versions 10.0.0
- Microsoft Windows 10 Version 1607 — versions 10.0.0
- Microsoft Windows 10 Version 1803 — versions 10.0.0
- Microsoft Windows 10 Version 1809 — versions 10.0.0
- Microsoft Windows 10 Version 1909 — versions 10.0.0
- Microsoft Windows 10 Version 2004 — versions 10.0.0
- Microsoft Windows 10 Version 20h2 — versions 10.0.0
- Microsoft Windows 7 — versions 6.1.0
- Microsoft Windows 7
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2021-1657?
- CVE-2021-1657 is a high-severity vulnerability in Microsoft Windows 10, classified under Improper Privilege Management. CVSS score: 7.8/10. Published 2021-01-12.
- How severe is CVE-2021-1657?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-1657 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.