Vulnerability in Microsoft Windows 10
CVE-2020-1337
An elevation of privilege vulnerability exists when the Windows Print Spooler service improperly allows arbitrary writing to the file system. An attacker who successfully exploited this vulnerability could run arbitrary code with elevated system privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted script or application. The update addresses the vulnerability by correcting how the Windows Print Spooler Component writes to the file system.
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
EPSS: 0.142 (96.2th percentile) — read the EPSS interpretation.
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.
Affected products
- Microsoft Windows_10 — versions 1607, 1709, 1803
- Microsoft Windows 10 Version 1507 — versions 10.0.0
- Microsoft Windows 10 Version 1607 — versions 10.0.0
- Microsoft Windows 10 Version 1709 — versions 10.0.0
- Microsoft Windows 10 Version 1709 For 32-bit Systems — 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 1903 For 32-bit Systems — versions 10.0.0
- Microsoft Windows 10 Version 1903 For Arm64-based Systems — versions 10.0.0
- Microsoft Windows 10 Version 1903 For X64-based Systems — versions 10.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
- secure@microsoft.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- secure@microsoft.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-1337?
- CVE-2020-1337 is a high-severity vulnerability in Microsoft Windows 10, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.8/10. Published 2020-08-17.
- How severe is CVE-2020-1337?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-1337 known to be exploited?
- 51 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.