CVE-2020-1123

A denial of service vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations. An attacker who successfully exploited this vulnerability could cause a system to stop responding. To exploit the vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability. The security update addresses the vulnerability by correcting how the Connected User Experiences and Telemetry Service handles file operations.

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1123
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1123Patch, Vendor Advisory

Published

May 21, 2020

Last Modified

Aug 19, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2020-11222Buffer over read while processing MT SMS with maximum length…9.1
• CVE-2020-11223Out of bound in camera driver due to lack of check of valida…7.8
• CVE-2020-11225Out of bound access in WLAN driver due to lack of validation…9.8
• CVE-2020-11226Out of bound memory read in Data modem while unpacking data …7.5
• CVE-2020-11227Out of bound write while parsing RTT/TTY packet parsing due …9.8
• CVE-2020-11228Part of RPM region was not protected from xblSec itself due …7.8
• CVE-2020-11230Potential arbitrary memory corruption when the qseecom drive…6.4
• CVE-2020-11231Two threads call one or both functions concurrently leading …6.7
• CVE-2020-11233Time-of-check time-of-use race condition While processing pa…7
• CVE-2020-11234When sending a socket event message to a user application, i…7.8
• CVE-2020-11235Buffer overflow might occur while parsing unified command du…7.8
• CVE-2020-11236Memory corruption due to invalid value of total dimension in…5.5