CVE-2020-1113
published 2020-05-21CVE-2020-1113: A security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over RPC, aka…
PriorityP345high7.5CVSS 3.1
AVNACHPRLUINSUCHIHAH
EPSS
7.28%
93.7th percentile
A security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over RPC, aka 'Windows Task Scheduler Security Feature Bypass Vulnerability'.
Affected
66 ranges· showing 25
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| microsoft | windows_10 | — | — |
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| microsoft | windows_10 | — | — |
| microsoft | windows_10_version_1903_for_32-bit_systems | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
vendor_msrc5.3MEDIUM
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Microsoft
Windows Task Scheduler Security Feature Bypass Vulnerability
vendor_msrc·2020-05-12·CVSS 5.3
CVE-2020-1113 [HIGH] Windows Task Scheduler Security Feature Bypass Vulnerability
Windows Task Scheduler Security Feature Bypass Vulnerability
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.
Windows Task Scheduler: Windows Task Scheduler
Issuing CNA: Microsoft
Impact: Security Feature Bypas
GHSA
GHSA-8rm2-mc4g-pm72: A security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over R
ghsa_unreviewed·2022-05-24
CVE-2020-1113 [HIGH] CWE-295 GHSA-8rm2-mc4g-pm72: A security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over R
A security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over RPC, aka 'Windows Task Scheduler Security Feature Bypass Vulnerability'.
No detection rules found.
No public exploits indexed.
Sentinelone
Relaying Potatoes: Another Unexpected Privilege Escalation Vulnerability in Windows RPC Protocol
blogs_sentinelone·2021-04-26
Relaying Potatoes: Another Unexpected Privilege Escalation Vulnerability in Windows RPC Protocol
## Relaying Potatoes: Another Unexpected Privilege Escalation Vulnerability in Windows RPC Protocol
By Antonio Cocomazzi and Andrea Pierini
## Executive Summary
Every Windows system is vulnerable to a particular NTLM relay attack that could allow attackers to escalate privileges from User to Domain Admin.
The current status of this vulnerability is “won’t fix”.
Enterprise security teams are encouraged to follow the recommendations and mitigations given below.
## Introduction
NTLM relaying [1] is a well known technique that has long been abused by attackers. Despite the continuous “fixes” from 2001 onwards, it is still possible in a MITM scenario, for certain protocols where signing is not enabled, to intercept the NTLM messages and to “relay” the authentication to a target resource
Sentinelone
Relaying Potatoes: Another Unexpected Privilege Escalation Vulnerability in Windows RPC Protocol - SentinelLabs
blogs_sentinelone·2021-04-26
Relaying Potatoes: Another Unexpected Privilege Escalation Vulnerability in Windows RPC Protocol - SentinelLabs
By Antonio Cocomazzi and Andrea Pierini
## Executive Summary
- Every Windows system is vulnerable to a particular NTLM relay attack that could allow attackers to escalate privileges from User to Domain Admin.
- The current status of this vulnerability is “won’t fix”.
- Enterprise security teams are encouraged to follow the recommendations and mitigations given below.
## Introduction
NTLM relaying [1] is a well known technique that has long been abused by attackers. Despite the continuous “fixes” from 2001 onwards, it is still possible in a MITM scenario, for certain protocols where signing is not enabled, to intercept the NTLM messages and to “relay” the authentication to a target resource in order to elevate privileges. Normally, NTLM relays need user intervention, so you have to tric
Talos
Microsoft Patch Tuesday — May 2020: Vulnerability disclosures and Snort coverage
blogs_talos·2020-05-12·CVSS 9.8
[CRITICAL] Microsoft Patch Tuesday — May 2020: Vulnerability disclosures and Snort coverage
## Microsoft Patch Tuesday — May 2020: Vulnerability disclosures and Snort coverage
By Jon Munshaw.
Microsoft released its monthly security update today, disclosing vulnerabilities across many of its products and releasing corresponding updates. This month's Patch Tuesday covers 111 vulnerabilities. Fifteen of the flaws Microsoft disclosed are considered critical. There are also 95 "important" vulnerabilities and six low- and moderate-severity vulnerabilities each.
Cisco Talos specifically disclosed CVE-2020-0901 , a code execution vulnerability in Excel. This month’s security update also covers security issues in a variety of Microsoft services and software, including SharePoint, Media Foundation and the Chakra scripting engine.
Talos also released a new set of SNORTⓇ rules that provi
Talos
Microsoft Patch Tuesday — May 2020: Vulnerability disclosures and Snort coverage
blogs_talos·2020-05-12·CVSS 9.8
CVE-2020-0901 [CRITICAL] Microsoft Patch Tuesday — May 2020: Vulnerability disclosures and Snort coverage
By Jon Munshaw.
Microsoft released its monthly security update today, disclosing vulnerabilities across many of its products and releasing corresponding updates. This month's Patch Tuesday covers 111 vulnerabilities. Fifteen of the flaws Microsoft disclosed are considered critical. There are also 95 "important" vulnerabilities and six low- and moderate-severity vulnerabilities each.
Cisco Talos specifically disclosed CVE-2020-0901, a code execution vulnerability in Excel. This month’s security update also covers security issues in a variety of Microsoft services and software, including SharePoint, Media Foundation and the Chakra scripting engine.
Talos also released a new set of SNORTⓇ rules that provide coverage for some of these vulnerabilities. For more, check out the full Snort rule
Crowdstrike
NTLM Keeps Haunting Microsoft
blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] NTLM Keeps Haunting Microsoft
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STARDUST CHOLLIMA Likely Compromises Axios npm Package Apr 01, 2026
Falcon for IT Supports Windows Secure Boot Certificate Lifecycle Management Apr 01, 2026
Detecting CVE-2026-20929: Kerberos Authentication Relay via CNAME Abuse Mar 31, 2026
How Charlotte AI AgentWorks Fuels Security's Agentic Ecosystem Mar 25, 2026
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2020-05-21
Published