Vulnerability in Microsoft Windows
CVE-2020-1277
An elevation of privilege vulnerability exists in Windows Installer because of the way Windows Installer handles certain filesystem operations.To exploit the vulnerability, an attacker would require unprivileged execution on the victim system, aka 'Windows Installer Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1272, CVE-2020-1302, CVE-2020-1312.
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: 0.007 (53.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000
Affected products
- Microsoft Windows — versions 10 Version 1809 for 32-bit Systems, 10 Version 1809 for x64-based Systems, 10 Version 1809 for ARM64-based Systems
- Microsoft Windows 10 — versions 1809, 1903, 1909
- Microsoft Windows 10 Version 1903 For 32-Bit Systems — versions unspecified
- Microsoft Windows 10 Version 1903 For Arm64-Based Systems — versions unspecified
- Microsoft Windows 10 Version 1903 For X64-Based Systems — versions unspecified
- Microsoft Windows 10 Version 1909 For 32-Bit Systems — versions unspecified
- Microsoft Windows 10 Version 1909 For Arm64-Based Systems — versions unspecified
- Microsoft Windows 10 Version 1909 For X64-Based Systems — versions unspecified
- Microsoft Windows 10 Version 2004 For 32-Bit Systems — versions unspecified
- Microsoft Windows 10 Version 2004 For Arm64-Based Systems — versions unspecified
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1277 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-1277?
- CVE-2020-1277 is a high-severity vulnerability in Microsoft Windows. CVSS score: 7.8/10. Published 2020-06-09.
- How severe is CVE-2020-1277?
- High severity. CVSS v3 base score is 7.8 out of 10.