CVE-2026-32157
Published: 14 April 2026
Description
Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
Mitigating Controls (NIST 800-53 r5)AI
Requires timely remediation of flaws, directly addressing the use-after-free vulnerability in Remote Desktop Client through patching as advised by MSRC.
Implements memory protection mechanisms like ASLR and DEP to prevent successful exploitation of use-after-free vulnerabilities leading to remote code execution.
Deploys malicious code protection tools to scan for and block exploit payloads or anomalous behavior from RCE triggered by the crafted RDP file.
Security SummaryAI
CVE-2026-32157 is a use-after-free vulnerability (CWE-416) affecting the Remote Desktop Client. Published on 2026-04-14, it has a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), indicating high severity due to its potential for significant impact.
An unauthorized attacker with network access can exploit this vulnerability by tricking a user into interacting with a malicious Remote Desktop connection, such as opening a crafted RDP file. Successful exploitation allows remote code execution on the target system, compromising confidentiality, integrity, and availability with high impact.
The Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32157 provides details on patches and mitigation guidance for affected Remote Desktop Client versions.
Details
- CWE(s)
Affected Products
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Use-after-free vulnerability in Remote Desktop Client enables remote code execution by tricking users into opening crafted RDP files or connecting to malicious RDP servers, directly facilitating T1203: Exploitation for Client Execution.