CVE-2020-1271: microsoft windows
CVSS: 7.8v3.1HighModified
Published 09-06-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-1271 is a high (CVSS 7.8) vulnerability in microsoft windows. EPSS estimates a 0.85% chance of exploitation in the next 30 days, higher than 57.3% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.85%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 09-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An elevation of privilege vulnerability exists when the Windows Backup Service improperly handles file operations.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Backup Service Elevation of Privilege Vulnerability'.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.85%
Chance of exploitation in the next 30 days
Percentile
57%
Versus all other CVEs
30-day change
+0.02 pp
From 0.83% on 20-09-2026
20-09-202620-10-2026
EPSS score0.85%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Microsoft19 products
- windows10 Version 1803 for 32-bit Systems | 10 Version 1803 for x64-based Systems | 10 Version 1803 for ARM64-based Systems | 10 Version 1809 for 32-bit Systems | 10 Version 1809 for x64-based Systems | 10 Version 1809 for ARM64-based Systems | 10 Version 1709 for 32-bit Systems | 10 Version 1709 for x64-based Systems | 10 Version 1709 for ARM64-based Systems | 10 for 32-bit Systems | 10 for x64-based Systems | 10 Version 1607 for 32-bit Systems | 10 Version 1607 for x64-based Systems | 7 for 32-bit Systems Service Pack 1 | 7 for x64-based Systems Service Pack 1
- windows_10na | 1607 | 1709 | 1809 | 1903 | 1909 | 2004
- windows 10 version 1903 for 32-bit systemsunspecified
- windows 10 version 1903 for arm64-based systemsunspecified
- windows 10 version 1903 for x64-based systemsunspecified
1 vendor · 19 products
References
1 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1271X Refsource MISCPatchVendor Advisory