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Results 5,597

CVE-2026-50658

Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability

Time-of-check time-of-use (toctou) race condition in Microsoft Defender allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Defender For Endpoint
CVE-2026-54370

acl < 2.4.0 TOCTOU Symlink Traversal via getfacl/setfacl/chacl

acl before version 2.4.0 contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that allows local attackers to escalate privileges by replacing a pathname component with a symbolic link between an lstat() check and subsequent symlink-following operations such as stat(), chown(), chmod(), acl_get_file(), and acl_set_file(). Attackers who control a pathname component can redirect file access control list operations to arbitrary files when getfacl, setfacl, or chacl is invoked by a privileged process over an attacker-controlled path, resulting in local privilege escalation.

CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed
Vendors
Acl Project
Products
Acl
CVE-2026-49958

Hermes WebUI < 0.51.303 TOCTOU Race Condition via git_discard

Hermes WebUI before version 0.51.303 contains a time-of-check time-of-use (TOCTOU) race condition vulnerability in the git_discard function within api/workspace_git.py that allows attackers to delete files outside the configured workspace boundary by replacing a validated path component with a symlink after validation but before deletion. Attackers can substitute a workspace-controlled path component with a symlink pointing to an external directory between the safe_resolve_ws() validation step and the subsequent Path.unlink() or shutil.rmtree() deletion call, causing the delete operation to follow the symlink and remove arbitrary files outside the workspace.

CVSS 4.0 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Get-hermes Nesquena
Products
Hermes Web Ui Hermes-webui
CVE-2026-41458

OwnTone Server < 29.1 Race Condition DoS via DAAP Login

OwnTone Server versions 28.4 through 29.0 contain a race condition vulnerability in the DAAP login handler that allows unauthenticated attackers to crash the server by exploiting unsynchronized access to the global DAAP session list. Attackers can flood the DAAP /login endpoint with concurrent requests to trigger a remote denial of service condition without requiring authentication.

CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Owntone
Products
Owntone Server Server
CVE-2026-50404

Windows Media Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Media allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 11 24h2 Windows 11 24h2 Windows 11 25h2 and 3 more
CVE-2026-50440

Windows Audio Service Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Audio Service allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 11 24h2 Windows 11 24h2 Windows 11 25h2 and 3 more
CVE-2026-62189

OpenClaw < 2026.6.9 Symlink Following via Mirror Sync

OpenClaw versions before 2026.6.9 contain a symlink following vulnerability in the mirror sync feature that allows lower-trust callers to perform actions requiring stronger authorization. Attackers can exploit remote symlink parents to bypass policy checks and authorization boundaries when the feature is enabled and reachable.

CVSS 4.0 · 7.6 High EPSS < 1% KEV · Not listed
Vendors
Openclaw
Products
Openclaw
CVE-2026-15302

ARMember <= 4.0.27 - Directory Traversal via X-FILENAME

The ARMember plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.0.27 via the 'X-FILENAME' HTTP header. This makes it possible for unauthenticated attackers to upload and overwrite certain files (e.g., CSS) to directories outside the 'wp-content/uploads/armember' directory.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Reputeinfosystems Wordpress
Products
Armember – Membership Plugin, Content Restriction, Member Levels, User Profile & User Signup Wordpress
CVE-2026-56676

9router: Image prefetch DNS rebinding allows SSRF to internal services

9Router is an AI router & token saver. Prior to 0.5.2, 9router validates image URLs by resolving the host before fetching, but open-sse/translator/concerns/image.js performs the later server-side image fetch with a separate DNS resolution. An authenticated attacker with access to the LLM proxy can use a vision-capable model and an attacker-controlled DNS name that first resolves to a public IP and then rebinds to an internal address, allowing server-side requests to internal-only HTTP services. This issue is fixed in version 0.5.2.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Decolua
Products
9router
CVE-2025-58151

varstored: TOCTOU issues with mapped guest memory

varstored is a component of the Xapi toolstack handling UEFI Variables for a VM. It has a communication path with OVMF inside the VM involving mapping a buffer prepared by OVMF. Within varstored, there were insufficient compiler barriers, creating TOCTOU issues with data in the shared buffer. The exact vulnerable behaviour depends on the code generated by the compiler. In a build of varstored using default settings, the attacker can control an index used in a jump table.

CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed
Vendors
Xen
Products
Varstored
CVE-2026-59896

hono/jsx does not isolate context per request, leading to cross-request data disclosure

Hono is a Web application framework that provides support for any JavaScript runtime. From 4.11.8 before 4.12.27, hono/jsx did not isolate context values per request during server-side rendering, allowing createContext, useContext, jsxRenderer, or useRequestContext data from a different in-flight request to be used after an await in an async component. This issue is fixed in version 4.12.27.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Hono
Products
Hono
CVE-2026-54777

CoreWCF NetNamedPipe transport accepts attach to a pre-existing named pipe instance

CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF NetNamedPipe transport accepts attachment to a pre-existing named pipe instance, allowing local interception of NetNamedPipe traffic when an attacker races NamedPipeListener startup between shared memory GUID publication and service named pipe creation. This issue is fixed in versions 1.8.1 and 1.9.1.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Corewcf
Products
Corewcf
CVE-2026-58198

ChatterBot: Symlink-Following Arbitrary Write via UbuntuCorpusTrainer

ChatterBot is a machine learning, conversational dialog engine for creating chat bots. Prior to 1.2.14, UbuntuCorpusTrainer.extract() uses a predictable home-rooted output directory (~/ubuntu_data/ubuntu_dialogs) with a check-then-create pattern followed by tar.extractall(path=self.data_path), allowing a local attacker who pre-plants a symlink at the predictable path to cause archive contents to be written through the symlink to an attacker-chosen directory. This issue is fixed in version 1.2.14.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Gunthercox
Products
Chatterbot
CVE-2026-54778

CoreWCF: UnixDomainSocket Non-Reentrant POSIX Identity Resolution

CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, CoreWCF UnixDomainSocket POSIX peer identity resolution uses non-reentrant getpwuid and getgrgid calls, allowing concurrent connections to attribute one connection's identity to another or crash the host process under contention. This issue is fixed in versions 1.8.1 and 1.9.1.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Corewcf
Products
Corewcf
CVE-2026-56297

FreeRDP - Use-After-Free via Race Condition in DRDYNVC Channel Callback

FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcman_channel_close and dvcman_call_on_receive due to improper synchronization of channel_callback access. A malicious RDP server can trigger a race condition by sending DYNVC_DATA and DYNVC_CLOSE messages concurrently, causing heap-use-after-free in the drdynvc client thread and potentially enabling remote code execution or denial of service.

CVSS 4.0 · 8.3 High EPSS < 1% KEV · Not listed
Vendors
Freerdp
Products
Freerdp
CVE-2026-42913

Remote Desktop Client Remote Code Execution Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Remote Desktop Remote Desktop Client Windows 11 23h2 and 11 more
CVE-2026-42909

Remote Desktop Client Remote Code Execution Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Remote Desktop Remote Desktop Client Windows 10 1607 and 27 more
CVE-2026-45603

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more
CVE-2026-45598

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Windows 10 1607 Windows 10 1809 Windows 10 21h2 and 23 more