CVEvulnerability
CVE-2020-1113
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-05-21
- Last modified
- 2026-08-19
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 9.3 HIGH — AV:N/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-295
Description
A security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over RPC. An attacker who successfully exploited this vulnerability could run arbitrary code as an administrator. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
To exploit this vulnerability, a man-in-the-middle attacker would need to send a specially crafted request to a vulnerable system.
The security update addresses the vulnerability by correcting how the Task Scheduler service validates connections.
Affected configurations
• microsoft windows 10
• microsoft windows 10 1607
• microsoft windows 10 1709
• microsoft windows 10 1803
• microsoft windows 10 1809
• microsoft windows 10 1903
• microsoft windows 10 1909
• microsoft windows 7
• microsoft windows 8.1
• microsoft windows rt 8.1
• microsoft windows server 2008
• microsoft windows server 2012
• microsoft windows server 2012 r2
• microsoft windows server 2016
• microsoft windows server 2019
• microsoft windows server 2019 1903
• microsoft windows server 2019 1909
Related
Weakness · CWE (1)
- CWE-295 Improper Certificate Validation weakness
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1113 msrc.microsoft.com
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1113 Patch, Vendor Advisory