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CVE-2026-120208

libheif 1.18.0 before 1.23.3 Heap Buffer Overflow via unci Mixed-Interleave Decoder

libheif 1.18.0 before 1.23.3 contains a heap-based buffer overflow vulnerability in unc_decoder_mixed_interleave::processTile() that allows attackers to write out of bounds by supplying chroma components with unequal bit depths. Attackers can craft a HEIF file declaring, for example, 16-bit Cb and 8-bit Cr to trigger file-controlled heap writes past the Cr plane, potentially achieving code execution in image-processing pipelines.

CVSS 4.0 · 7.7 High EPSS < 1% KEV · Not listed
Vendors
Struktur
Products
Libheif
CVE-2026-116258

libimobiledevice AFC afc.c heap-based overflow

A vulnerability was identified in libimobiledevice up to 1.4.0. This affects an unknown part of the file src/afc.c of the component AFC. Such manipulation leads to heap-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Libimobiledevice
Products
Libimobiledevice
CVE-2019-9936

sqlite: heap-based buffer over-read in function fts5HashEntrySort in sqlite3.c

In SQLite 3.27.2, running fts5 prefix queries inside a transaction could trigger a heap-based buffer over-read in fts5HashEntrySort in sqlite3.c, which may lead to an information leak. This is related to ext/fts5/fts5_hash.c.

CVSS 3.0 · 7.5 High EPSS 5.3% KEV · Not listed
Vendors
Sqlite
Products
Sqlite
CVE-2026-34118

Heap-based Buffer Overflow Vulnerability Leading to Denial-of-Service in multiple TP-Link Tapo Cameras

A heap-based buffer overflow vulnerability was identified in multiple TP-Link Tapo cameras in the HTTP POST body parsing logic due to missing validation of remaining buffer capacity after dynamic allocation, due to insufficient boundary validation when handling externally supplied HTTP input.   An attacker on the same network segment could trigger heap memory corruption conditions by sending crafted payloads that cause write operations beyond allocated buffer boundaries.  Successful exploitation causes a Denial-of-Service (DoS) condition, causing the device’s process to crash or become unresponsive.

CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Tp-link
Products
Tapo C520ws Tapo C520ws Firmware Tapo C520ws V2
CVE-2026-81665

Corosync: corosync: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly

A heap-based buffer overflow was found in Corosync's Totem Process Group (totempg) message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send crafted multicast protocol messages to the cluster could cause a heap buffer overflow with attacker-controlled data. This can crash the Corosync daemon, causing a denial of service to the entire cluster, and may potentially allow further exploitation given sufficient heap-corruption control.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Corosync Redhat
Products
Corosync Enterprise Linux Enterprise Linux Eus and 7 more
CVE-2026-83775

Windows Installer Elevation of Privilege Vulnerability

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer 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 25 more
CVE-2026-85908

Windows Graphics Component Elevation of Privilege Vulnerability

Heap-based buffer overflow in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
Office Office 365 Office Macos 2021 and 29 more
CVE-2026-116488

NXP MCUXpresso SDK USB Middleware before 2.13.0 Heap Overflow via Host Class Drivers

NXP MCUXpresso SDK USB middleware (mcuxsdk-middleware-usb) before 2.13.0 contains a heap buffer overflow in host audio, video and CDC class drivers that trust device-supplied bNumEndpoints and bLength values. A malicious USB device can supply crafted descriptors that write endpoint entries past the fixed-size epList array, corrupting heap memory for code execution or denial of service.

CVSS 4.0 · 7 High EPSS < 1% KEV · Not listed
Vendors
Nxp
Products
Mcuxsdk-middleware-usb
CVE-2026-70125

Microsoft Office Outlook Remote Code Execution Vulnerability

Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Microsoft
Products
365 Apps Office 2021 Office 2024
CVE-2026-9536

vtk: vtk: Denial of Service via heap-based buffer overflow in vtkWindBladeReader

A heap-based buffer overflow vulnerability exists in the vtkWindBladeReader FindVariableOffsets functionality of vtk (version(s): 9.6.1). A specially crafted .wind can lead to a buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Vtk
Products
Vtk