Mailslot File System Privilege Escalation

The vulnerability of the Mailslot File System component in Windows operating systems relates to the possibility of exploiting memory after it is freed. Exploiting this vulnerability can allow an attacker to increase their privileges...

CVE-2026-21253

Use after free in Mailslot File System allows an authorized attacker to elevate privileges locally...

Vulnerabilities fixed in Microsoft Windows

Microsoft has fixed vulnerabilities in Windows. A malicious party can exploit the vulnerabilities to carry out attacks that can lead to the following categories of damage: - Denial-of-Service DoS - Manipulation of data - Accessing sensitive data - Execution of arbitrary code user privileges -...

CVE-2026-21253

Use after free in Mailslot File System allows an authorized attacker to elevate privileges locally...

CVE-2026-21253

Use after free in Mailslot File System allows an authorized attacker to elevate privileges locally...

CVE-2026-21253

Use after free in Mailslot File System allows an authorized attacker to elevate privileges locally...

CVE-2026-21253 Mailslot File System Elevation of Privilege Vulnerability

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CVE-2026-21253 Mailslot File System Elevation of Privilege Vulnerability

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CVE-2026-21253

CVE-2026-21253 is a Windows vulnerability in the Mailslot File System described as a use-after-free issue that can enable local privilege escalation. The CVE’s CVSS 3.1 score is 7.0 (HIGH) with a local attack vector, high attack complexity, and requires low privileges and no user interaction. The...

Mailslot File System Elevation of Privilege Vulnerability

Use after free in Mailslot File System allows an authorized attacker to elevate privileges locally...

CVE-2026-21253: Use After Free

Use after free in Mailslot File System allows an authorized attacker to elevate privileges locally...

PT-2026-7356

Name of the Vulnerable Software and Affected Versions Mailslot File System affected versions not specified Description A flaw exists in the Mailslot File System that could allow a local attacker to gain elevated privileges. The issue is a use-after-free condition. An attacker can exploit this to...

KLA90878 Multiple vulnerabilities in Microsoft Products (ESU)

Multiple vulnerabilities were found in Microsoft Products Extended Security Update. Malicious users can exploit these vulnerabilities to execute arbitrary code, gain privileges, bypass security restrictions, spoof user interface, obtain sensitive information, cause denial of service. Below is a...