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CVE-2026-112709

Fireware OS Heap Buffer Overflow in AD Authentication Service Allows Pre-Authentication Remote Code Execution

A heap-based buffer overflow vulnerability in the Fireware OS authentication service allows an attacker who controls or intercepts traffic to the configured Active Directory server to create a denial of service condition and potentially execute arbitrary code by returning a specially crafted response.

CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
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CVE-2026-111548

Stack Buffer Overflow in Moxa Wireless Device Server Web Interface

A stack-based buffer overflow vulnerability exists in the web management interface of affected Moxa wireless device servers. An authenticated remote attacker with low privileges could exploit insufficient bounds checking of user-supplied input, causing the web management service to become unresponsive. Restoring the service requires power cycling the affected device, while other device functions remain operational.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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CVE-2026-111107

Fireware OS NULL Pointer Dereference in Management Interface Allows Unauthenticated Denial of Service

A NULL pointer dereference vulnerability in WatchGuard Fireware OS’s management interface allows a remote, unauthenticated attacker with network access to the management interface to crash the management service by sending a specially crafted login request. Repeated exploitation terminates all active administrator sessions and in-progress management operations and can prevent management of the device. Traffic processing is not affected.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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CVE-2026-109090

libXi XGetDeviceControl DEVICE_ENABLE Heap Buffer Overflow

A malicious X server could cause a heap overflow by injecting a large DEVICE_ENABLE reply when processed by libXi before 1.8.4.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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CVE-2026-109089

libXi XGetDeviceControl Control Type Mismatch Heap Buffer Overflow

A buffer overflow when handling DEVICE_RESOLUTION in libXi before 1.8.4 could overflow a heap, triggered by a malicious X server.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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CVE-2026-103594

Fireware OS Stack Buffer Overflow in WireGuard Configuration Allows Remote Code Execution

A stack-based buffer overflow vulnerability in Fireware OS's WireGuard configuration processing allows a remote attacker that has man-in-the-middle TLS-decrypted access between the Firebox and WatchGuard Cloud to create a Denial of Service condition and potentially execute arbitrary code by tampering with a FireCloud Gateway configuration payload.

CVSS 4.0 · 9.5 Critical EPSS < 1% KEV · Not listed
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CVE-2024-31082

Xorg-x11-server: heap buffer overread/data leakage in procappledricreatepixmap

A heap-based buffer over-read vulnerability was found in the X.org server's ProcAppleDRICreatePixmap() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
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CVE-2024-31081

Xorg-x11-server: heap buffer overread/data leakage in procxipassivegrabdevice

A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIPassiveGrabDevice() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
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CVE-2024-31080

Xorg-x11-server: heap buffer overread/data leakage in procxigetselectedevents

A heap-based buffer over-read vulnerability was found in the X.org server's ProcXIGetSelectedEvents() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
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CVE-2024-21886

Xorg-x11-server: heap buffer overflow in disabledevice

A heap buffer overflow flaw was found in the DisableDevice function in the X.Org server. This issue may lead to an application crash or, in some circumstances, remote code execution in SSH X11 forwarding environments.

CVSS 3.1 · 7.8 High EPSS 1.4% KEV · Not listed
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CVE-2024-21885

Xorg-x11-server: heap buffer overflow in xisenddevicehierarchyevent

A flaw was found in X.Org server. In the XISendDeviceHierarchyEvent function, it is possible to exceed the allocated array length when certain new device IDs are added to the xXIHierarchyInfo struct. This can trigger a heap buffer overflow condition, which may lead to an application crash or remote code execution in SSH X11 forwarding environments.

CVSS 3.1 · 7.8 High EPSS 1.4% KEV · Not listed
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CVE-2024-12084

Rsync: heap buffer overflow in rsync due to improper checksum length handling

A heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handling of attacker-controlled checksum lengths (s2length) in the code. When MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH (16 bytes), an attacker can write out of bounds in the sum2 buffer.

CVSS 3.1 · 9.8 Critical EPSS 72.5% KEV · Not listed
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CVE-2023-6377

Xorg-x11-server: out-of-bounds memory reads/writes in xkb button actions

A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X11 forwarding is involved.

CVSS 3.1 · 7.8 High EPSS 1.6% KEV · Not listed
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Debian Redhat Tigervnc and 1 more
CVE-2026-121925

Buffer overflow in SAML authentication post-back URL handling in libsnowflakeclient and Snowflake PHP PDO Driver

A stack-based buffer overflow in libsnowflakeclient and the Snowflake PHP PDO Driver could, under specific conditions, result in memory corruption during SAML-based authentication. During a native SSO/SAML login flow, the affected drivers may have copied a value taken from the identity provider's HTML response into a fixed-size memory buffer without first validating the length of that value. An attacker who controlled or had compromised the configured identity provider — or who was able to redirect the SAML single sign-on endpoint to an attacker-controlled server — might have leveraged this by returning an oversized response, potentially resulting in a crash or, in specific circumstances, remote code execution within the context of the application running the library. The fix is available in libsnowflakeclient version 2.11.1 and Snowflake PHP PDO Driver version 4.3.0. Users must manually upgrade.

CVSS 3.1 · 6.6 Medium EPSS < 1% KEV · Not listed
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CVE-2026-116487

NXP MCUXpresso SDK USB Middleware before 2.13.0 RNDIS Out-of-Bounds Read

NXP MCUXpresso SDK USB middleware (mcuxsdk-middleware-usb) before 2.13.0 contains an out-of-bounds read vulnerability in USB_DeviceCdcRndisSetCommand() that trusts a host-supplied informationBufferOffset. A malicious USB host can send RNDIS SET messages for OID_GEN_CURRENT_PACKET_FILTER or OID_802_3_MULTICAST_LIST with an out-of-range offset to read and disclose device memory.

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
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Nxp
CVE-2026-65384

Out‑of‑Bounds Read Causing Unexpected Process Termination in macOS

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27.2. A remote attacker may cause an unexpected process termination.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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CVE-2026-112488

Apple Image Processing Buffer Overflow Vulnerability

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Tahoe 26.7.2, visionOS 27.2. Processing a maliciously crafted image may corrupt process memory.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
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CVE-2026-86973

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in Safari 27.2, iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2. Processing maliciously crafted web content may lead to an unexpected process crash.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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