Início / CVEs
Base de CVEs
Vulnerabilidades publicadas, com severidade, exploração conhecida e fontes oficiais.
CVE-2026-63937
Alta · 8.8
CWE-367 19/07/2026
KVM: SEV: Use READ_ONCE() when reading entries/indices from PSC buffer
In the Linux kernel, the following vulnerability has been resolved:
KVM: SEV: Use READ_ONCE() when reading entries/indices from PSC buffer
Use READ_ONCE() when reading entries/indices from the guest-accessible
Page State Change buffer to defend against TOCTOU bugs.
Don't bother with READ_ONCE()/WRITE_ONCE() for cases where KVM is writing
(and not consuming the result!), as the guest isn't supposed to touch the
buffer while it's being processed. I.e. using READ_ONCE() is all about
protecting against misbehaving guests.
CVE-2026-54242
Média · 4.9
CWE-367 17/07/2026
Statamic: Server-Side Request Forgery via Glide (DNS rebinding)
Statamic is a Laravel and Git powered content management system (CMS). Prior to 5.73.24 and 6.20.1, the Glide image proxy's URL validation in src/Imaging/RemoteUrlValidator.php and src/Imaging/GuzzleAdapter.php could be bypassed using DNS rebinding. The remote hostname was validated as publicly routable, but resolved again when the image was actually fetched, so an attacker controlling the hostname's DNS could rebind it to an internal address after validation and cause the server to make HTTP requests to internal addresses, including loopback, private network, and cloud metadata endpoints. This affects sites that pass user-supplied URLs to Glide. This issue is fixed in versions 5.73.24 and 6.20.1.
CVE-2026-62212
Alta · 7.1
CWE-367 16/07/2026
OpenClaw < 2026.5.28 Authentication Bypass via safeFetch
OpenClaw before 2026.5.28 contains a race condition in the MS Teams safeFetch DNS rebinding check. When the affected feature is enabled and reachable, a lower-trust caller or configured input path could win a timing window between the DNS validation check and use, allowing actions that should have required a stronger authorization or policy check. Practical impact depends on the operator's configuration and whether lower-trust input can reach that path.
CVE-2026-53410
Alta · 7.0
CWE-367 16/07/2026
Zoom Clients for Windows - Race Condition
A time-of-check to time-of-use (TOCTOU) race condition in the installation and uninstallation process of certain Zoom Clients for Windows could allow an authenticated local user to escalate privileges.
CVE-2026-45804
Alta · 7.5
CWE-367 15/07/2026
Diffusers: TOCTOU Trust Remote Code Bypass
Diffusers is the a library for pretrained diffusion models. Prior to 0.38.0, Diffusers' DiffusionPipeline.from_pretrained flow can bypass the trust_remote_code guard because download() validates model_index.json and custom pipeline code before later loading from a cached folder that can change, allowing a Hub repository with custom .py pipeline code to execute through the custom pipeline flow without passing custom_pipeline or trust_remote_code=True. This issue is fixed in version 0.38.0.
CVE-2026-48344
Alta · 7.8
CWE-367 14/07/2026
GoCart | Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367)
Creative Cloud Desktop is affected by a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability that could result in arbitrary code execution in the context of the current user. Exploit depends on conditions beyond the attacker's control. Exploitation of this issue does not require user interaction. Scope is changed.
CVE-2026-57973
Média · 4.7
CWE-367 14/07/2026
Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability
Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering locally.
CVE-2026-56648
Alta · 7.5
CWE-367 14/07/2026
Windows NFS Server Elevation of Privilege Vulnerability
Time-of-check time-of-use (toctou) race condition in Windows Network File System allows an authorized attacker to elevate privileges over a network.
CVE-2026-56178
Alta · 7.0
CWE-367 14/07/2026
Microsoft Defender for Endpoint for Mac Elevation of Privilege Vulnerability
Time-of-check time-of-use (toctou) race condition in Microsoft Defender for Endpoint allows an authorized attacker to elevate privileges locally.
CVE-2026-50673
Alta · 7.8
CWE-367 14/07/2026
Windows Kernel Elevation of Privilege Vulnerability
Null pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVE-2026-50658
Alta · 7.0
CWE-367 14/07/2026
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.
CVE-2026-4018
Média · 6.4
CWE-367 14/07/2026
TOCTOU race condition in the QNX Neutrino kernel impacts versions of the QNX Software Development Platform and QNX OS for Safety
TOCTOU Race Condition in specific trace commands of the TraceEvent() system call could allow an attacker with local access and with the PROCMGR_AID_TRACE ability, to cause information disclosure, data tampering or a crash of the QNX Neutrino kernel.
CVE-2026-45203
Alta · 7.8
CWE-367 10/07/2026
GPU DDK - rgxfw_hwperf_ufo() re-reads psCmdHeader->ui32CmdSize after initial check, TOCTOU
Kernel software installed and running inside a Host VM may post improper commands to the GPU Firmware to trigger a memory write outside the permitted range of memory for the host kernel.
A TOCTOU bug existed where a malicious driver could modify values in memory after firmware validation but before use.
CVE-2026-56676
Alta · 7.4
CWE-367 10/07/2026
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.
CVE-2025-58151
Crítica · 9.4
CWE-367 09/07/2026
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.
CVE-2026-54777
Média · 6.5
CWE-367 08/07/2026
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.
CVE-2026-43927
Média · 6.9
CWE-367 06/07/2026
FOSSBilling has race condition in cart checkout that bypasses promo code usage limits
FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, a race condition in the cart checkout flow allows an authenticated client to apply a promo code beyond its configured maximum uses. By sending concurrent checkout requests before any single request completes the usage increment, a client can obtain unlimited discounted or free orders from a single-use or limited-use promo code. Version 0.8.0 patches the issue. Some workarounds are available. Disable promo codes entirely until a patch is available or monitor the `promo` table for `used` values exceeding `maxuses` and manually review affected orders.
CVE-2026-25271
Alta · 7.0
CWE-367 06/07/2026
Time-of-check Time-of-use (TOCTOU) Race Condition in DSP Service
Memory Corruption when processing asynchronous input parameters due to improper handling of modified values between check and use.
CVE-2026-58299
Alta · 7.5
CWE-367 03/07/2026
Microsoft Edge for Android Remote Code Execution Vulnerability
Time-of-check time-of-use (toctou) race condition in Microsoft Edge for Android allows an unauthorized attacker to execute code over a network.
CVE-2026-55950
Média · 5.9
CWE-367 02/07/2026
DTLS listener crash via race condition in dtls_packet_demux causes denial of service for all sessions
Time-of-check Time-of-use (TOCTOU) race condition vulnerability in Erlang/OTP ssl (dtls_packet_demux module) allows an unauthenticated remote attacker to crash all active DTLS sessions on a listener.
A DTLS server listener uses a single shared dtls_packet_demux gen_server process to route incoming UDP datagrams to the correct connection handler. When a DTLS client reconnects rapidly from the same source address and port (sending multiple ClientHello messages in quick succession), a race condition in the demux's internal gb_trees key-value store causes a {key_exists, {old, Client}} crash, terminating the demux process. Because the demux is shared across all DTLS associations on that listener, its crash immediately kills every active DTLS session, not just the attacker's.
The attack is pre-authentication: the attacker only needs to send UDP datagrams containing valid ClientHello messages from the same source IP and port before the intermediate DOWN monitor message is processed by the gen_server. No credentials, no completed handshake, and no special configuration are required, and the crash can be repeated indefinitely to create a persistent denial of service for all clients of that listener.
This vulnerability is associated with program file lib/ssl/src/dtls_packet_demux.erl.
This issue affects OTP from OTP 25.3 before OTP 29.0.3, OTP 28.5.0.3 and OTP 27.3.4.14, corresponding to ssl from 10.9 before 11.7.3, 11.6.0.3 and 11.2.12.10.
CVE-2026-24260
Alta · 8.5
CWE-367 01/07/2026
TOCTOU Race Condition em NVIDIA Container Toolkit
NVIDIA Container Toolkit for Linux contains a vulnerability where an attacker could cause a time-of-check time-of-use race condition. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, and data tampering.
CVE-2026-14160
Média · 5.9
CWE-367 30/06/2026
TOCTOU Race Condition em Samsung Open Source Escargot
Time-of-check time-of-use (TOCTOU) race condition vulnerability in Samsung Open Source Escargot allows Leveraging Race Conditions.
This issue affects Escargot: bab3a5797557014ce3c2e28419a6310cfba90d0d.
CVE-2026-57959
Média · 5.9
CWE-367 29/06/2026
Hi.Events 1.9.0 - Promo Code Max-Usage Bypass via Asynchronous Job Race Condition
Hi.Events through 1.9.0 contains a promo code validation vulnerability where reservation validates usage count before asynchronous UpdateEventStatisticsJob increments it, allowing attackers to redeem limited promo codes unlimited times. Attackers can sequentially reserve multiple orders with the same restricted promo code, each reading order_usage_count=0 and passing validation, then complete them all at discounted prices without concurrent requests.
CVE-2026-13742
Média · 5.9
CWE-367 29/06/2026
Lack of signature verification before execution of downloaded content
Honeywell IQ MultiAccess, all versions prior to and including version 28, contain an improper digital signature verification vulnerability. An attacker could potentially exploit this vulnerability, leading to the replacement of downloaded file with a malicious one. Honeywell also recommends updating to the most recent version of this product, service, or offering [V27 SP1, V28 SP1]
CVE-2026-54370
Média · 6.3
CWE-367 29/06/2026
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.