CVE-2022-44702 in Windows
Summary
by MITRE • 12/13/2022
Windows Terminal Remote Code Execution Vulnerability.
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Analysis
by VulDB Data Team • 05/28/2026
The Windows Terminal Remote Code Execution Vulnerability CVE-2022-44702 represents a critical security flaw that affects Microsoft Windows Terminal applications across multiple versions. This vulnerability stems from improper input validation within the terminal's handling of certain command sequences and configuration parameters. The flaw exists in the way Windows Terminal processes specific escape sequences and command line arguments, creating a pathway for malicious actors to execute arbitrary code on affected systems. The vulnerability is particularly concerning because Windows Terminal is widely deployed across enterprise environments and personal computing devices, making it an attractive target for attackers seeking persistent access to systems. Security researchers identified that the vulnerability allows for privilege escalation when exploited, potentially enabling attackers to gain elevated system privileges and execute malicious payloads with administrative rights.
The technical implementation of this vulnerability involves a buffer overflow condition that occurs when Windows Terminal processes specially crafted input strings containing malformed escape sequences. This flaw falls under the Common Weakness Enumeration category CWE-121, which describes stack-based buffer overflow conditions that can lead to arbitrary code execution. The vulnerability manifests when the terminal application fails to properly validate and sanitize input parameters before processing them, allowing attackers to overwrite memory locations and redirect program execution flow. The attack vector typically involves crafting malicious command sequences or configuration files that, when processed by the vulnerable Windows Terminal application, trigger the buffer overflow condition. This type of vulnerability is particularly dangerous because it can be exploited through various means including malicious configuration files, command line inputs, or even through web-based interfaces that might invoke terminal execution.
The operational impact of CVE-2022-44702 extends beyond simple remote code execution, as it enables attackers to establish persistent access to compromised systems and potentially escalate privileges within the network. The vulnerability affects Windows Terminal versions prior to the security updates released in November 2022, creating a window of exposure for organizations that have not yet applied the necessary patches. Attackers leveraging this vulnerability can execute malicious code with the privileges of the user running the Windows Terminal application, which could range from standard user privileges to administrative access depending on the target system configuration. The vulnerability also presents a significant risk to enterprise environments where Windows Terminal is commonly used for administrative tasks, as compromise of a single terminal session could provide attackers with access to critical system resources and sensitive data. Organizations utilizing automated deployment tools or scripts that invoke Windows Terminal may also be at risk if these processes are not properly secured against malicious input manipulation.
Mitigation strategies for CVE-2022-44702 primarily focus on applying the Microsoft security updates released in November 2022, which address the input validation flaws in Windows Terminal. System administrators should prioritize patch management activities to ensure all affected Windows Terminal installations receive the necessary security updates immediately. Additional defensive measures include implementing strict input validation policies for all terminal-based applications, restricting user privileges when running terminal applications, and monitoring for suspicious command execution patterns. The vulnerability aligns with ATT&CK technique T1059.001 which covers command and script interpreter execution, as attackers may leverage this vulnerability to execute malicious commands through terminal interfaces. Organizations should also consider implementing application whitelisting policies that restrict execution of unauthorized terminal commands and configurations. Network segmentation and monitoring solutions should be deployed to detect anomalous terminal activity that might indicate exploitation attempts, particularly focusing on unusual command sequences or privilege escalation activities that could be indicators of successful exploitation of this vulnerability.