Vulnerabilities (CVE)

Filtered by CWE-476
Total 5884 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2026-10556 1 Mattermost 1 Mattermost Server 2026-10-07 N/A 5.3 MEDIUM
Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to validate null entries in Microsoft Graph webhook notification payloads, which allows an unauthenticated attacker to crash the Microsoft Calendar plugin process and deny calendar integration service to all users on the instance via a crafted {{POST}} request to the public webhook endpoint.. Mattermost Advisory ID: MMSA-2026-00693
CVE-2026-82357 2026-10-07 N/A 6.5 MEDIUM
RT-Labs AB C-Open CANopen contains a NULL pointer dereference if the LSS protocol is used to configure the device. An object defined by the user application may not have all required subindexes for object 0x1018. An unauthenticated, remote attacker with access to the CAN bus, through a compromised node for instance, can initiate the LSS protocol on a device with a misconfigured identity object and potentially crash the device. Fixed in 1.1.1.
CVE-2026-102169 2026-10-07 N/A 6.5 MEDIUM
On affected Arista Wi-Fi access points with Captive Portal enabled, an unauthenticated wireless client connected to a captive-portal-enabled SSID can crash the portal service with a crafted HTTP request. The service automatically restarts, but a sustained low-rate attack can cause a persistent denial of service of the captive portal. Remote code execution is not possible.
CVE-2025-15156 2026-10-07 4.0 MEDIUM 4.3 MEDIUM
A flaw has been found in omec-project UPF up to 2.1.3-dev. This affects the function handleSessionEstablishmentRequest of the file /pfcpiface/pfcpiface/messages_session.go of the component PFCP Session Establishment Request Handler. This manipulation causes null pointer dereference. The attack may be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
CVE-2025-62466 1 Microsoft 14 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 11 more 2026-10-07 N/A 7.8 HIGH
Null pointer dereference in Windows Client-Side Caching (CSC) Service allows an authorized attacker to elevate privileges locally.
CVE-2025-62463 1 Microsoft 8 Windows 10 21h2, Windows 10 22h2, Windows 11 23h2 and 5 more 2026-10-07 N/A 6.5 MEDIUM
Null pointer dereference in Windows DirectX allows an authorized attacker to deny service locally.
CVE-2025-20793 1 Mediatek 53 Mt2735, Mt2737, Mt6813 and 50 more 2026-10-07 N/A 6.5 MEDIUM
In Modem, there is a possible system crash due to incorrect error handling. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01430930; Issue ID: MSV-4836.
CVE-2025-69259 2 Microsoft, Trendmicro 2 Windows, Apex Central 2026-10-07 N/A 7.5 HIGH
A message unchecked NULL return value vulnerability in Trend Micro Apex Central could allow a remote attacker to create a denial-of-service condition on affected installations. Please note: authentication is not required in order to exploit this vulnerability..
CVE-2025-7018 2026-10-07 N/A 5.5 MEDIUM
Null pointer dereference vulnerability in Avira Antivirus engine when scanning a malformed Windows PE file may allow Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.64.
CVE-2026-86128 1 Watchguard 1 Fireware 2026-10-06 N/A 7.5 HIGH
A NULL pointer dereference vulnerability in Fireware OS's NetFlow packet-processing feature allows a remote, unauthenticated attacker to cause a denial of service by sending a specially crafted IPv6 packet.
CVE-2026-86136 1 Watchguard 1 Fireware 2026-10-06 N/A 8.1 HIGH
A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request.
CVE-2026-9032 2026-10-06 N/A N/A
Tapo C120 v1 and C200 v5 contain a NULL pointer dereference in the HTTPS onboarding connect request parser.  The interface is reachable without authentication after initial setup and does not validate that a password field is present for certain authentication and encryption parameter combinations, allowing a malformed request from the same local network to crash the HTTPS service  Successful exploitation may temporarily make HTTPS management functions unavailable. Repeated malformed requests may sustain the denial-of-service condition, and recovery may in some cases require a device reboot.
CVE-2026-86134 1 Watchguard 1 Fireware 2026-10-06 N/A 7.5 HIGH
A NULL pointer dereference vulnerability in the WatchGuard Fireware OS authentication process allows a remote, unauthenticated attacker to crash the management daemon by sending a specially request to the login interface, resulting in a denial of service.
CVE-2026-73547 1 Envoyproxy 1 Envoy 2026-10-06 N/A 7.5 HIGH
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's ext_authz filter assumes that a request contains a :path pseudoheader when applying query_parameters_to_set or query_parameters_to_remove from an authorization response. A path-less CONNECT request makes request_headers_->Path() return null, and Filter::onComplete dereferences that pointer while parsing the query string. An unauthenticated downstream client can crash the Envoy process when the filter and authorization response use query-parameter mutation. The relevant scope boundary is that the deployment must accept path-less CONNECT and configure ext_authz query-parameter mutation. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.
CVE-2026-93316 2026-10-06 N/A N/A
If BuildKit daemon is started with --cdi-disabled it can lead to daemon panic when builds try to use CDI devices. This can happen maliciously or by accident.
CVE-2026-92051 1 Mozilla 2 Firefox, Thunderbird 2026-10-05 N/A 9.1 CRITICAL
Spoofing issue due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.
CVE-2026-63686 1 Apache 1 Http Server 2026-10-05 N/A 7.5 HIGH
A NULL pointer dereference in mod_xml2enc in Apache Software Foundation Apache HTTP Server before 2.4.69 on all platforms allows an untrusted backend server to cause a denial of service via a proxied response with a charset whose conversion partially succeeds then fails. Users are recommended to upgrade to version 2.4.69, which fixes this issue.
CVE-2025-8033 1 Mozilla 2 Firefox, Thunderbird 2026-10-05 N/A 6.5 MEDIUM
The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
CVE-2026-48521 1 Envoyproxy 1 Envoy 2026-10-05 N/A 5.9 MEDIUM
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's ProdClusterManagerFactory::allocateConnPool dereferences transport_socket_options while selecting an HTTP/3 connection pool without first checking whether the pointer is null. LoadBalancerContext implementations used by synthetic, mirror, health-check, and async-client calls can return no transport-socket options. With auto_config and HTTP/3 enabled, routine traffic reaching one of those contexts can crash an Envoy worker. The relevant scope boundary is that the affected branch requires HTTP/3 in the protocol set and a context that supplies no transport-socket options. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.
CVE-2024-42282 1 Linux 1 Linux Kernel 2026-10-03 N/A 5.5 MEDIUM
In the Linux kernel, the following vulnerability has been resolved: net: mediatek: Fix potential NULL pointer dereference in dummy net_device handling Move the freeing of the dummy net_device from mtk_free_dev() to mtk_remove(). Previously, if alloc_netdev_dummy() failed in mtk_probe(), eth->dummy_dev would be NULL. The error path would then call mtk_free_dev(), which in turn called free_netdev() assuming dummy_dev was allocated (but it was not), potentially causing a NULL pointer dereference. By moving free_netdev() to mtk_remove(), we ensure it's only called when mtk_probe() has succeeded and dummy_dev is fully allocated. This addresses a potential NULL pointer dereference detected by Smatch[1].