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CVE-2026-22801

LIBPNG has an integer truncation causing heap buffer over-read in png_image_write_*

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings on 16-bit systems. This vulnerability is fixed in 1.6.54.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Libpng
Products
Libpng
CVE-2026-23833

ESPHome vulnerable to denial-of-service via out-of-bounds check bypass in the API component

ESPHome is a system to control microcontrollers remotely through Home Automation systems. In versions 2025.9.0 through 2025.12.6, an integer overflow in the API component's protobuf decoder allows denial-of-service attacks when API encryption is not used. The bounds check `ptr + field_length > end` in `components/api/proto.cpp` can overflow when a malicious client sends a large `field_length` value. This affects all ESPHome device platforms (ESP32, ESP8266, RP2040, LibreTiny). The overflow bypasses the out-of-bounds check, causing the device to read invalid memory and crash. When using the plaintext API protocol, this attack can be performed without authentication. When noise encryption is enabled, knowledge of the encryption key is required. Users should upgrade to ESPHome 2025.12.7 or later to receive a patch, enable API encryption with a unique key per device, and follow the Security Best Practices.

CVSS 4.0 · 1.7 Low EPSS < 1% KEV · Not listed
Vendors
Esphome
Products
Esphome
CVE-2026-23876

Heap buffer overflow with attacker-controlled data in XBM parser

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when processing a maliciously crafted image file. Any operation that reads or identifies an image can trigger the overflow, making it exploitable via common image upload and processing pipelines. Versions 7.1.2-13 and 6.9.13-38 fix the issue.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Imagemagick
Products
Imagemagick
CVE-2026-24403

iccDEV Undefined Behavior in CIccProfile::CheckHeader() Leads to Integer Overflow

iccDEV provides libraries and tools for interacting with, manipulating, and applying ICC color management profiles. In versions 2.3.1.1 and below, an integer overflow vulnerability exists in icValidateStatus CIccProfile::CheckHeader() when user-controllable input is incorporated into profile data unsafely. Tampering with tag tables, offsets, or size fields can trigger parsing errors, memory corruption, or DoS, potentially enabling arbitrary Code Execution or bypassing application logic. This issue has been fixed in version 2.3.1.2.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Color Internationalcolorconsortium
Products
Iccdev Iccdev
CVE-2026-24808

A possible integer overflow vulnerability in RawTherapee/RawTherapee

Integer Overflow or Wraparound vulnerability in RawTherapee (rtengine modules). This vulnerability is associated with program files dcraw.Cc. This issue affects RawTherapee: through 5.11.

CVSS 4.0 · 8.3 High EPSS < 1% KEV · Not listed
Vendors
Rawtherapee
Products
Rawtherapee
CVE-2026-24830

Integer Overflow or Wraparound in IronOS

Integer Overflow or Wraparound vulnerability in Ralim IronOS.This issue affects IronOS: before v2.23-rc2.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Ralim
Products
Ironos
CVE-2026-24875

Integer overflow in modizer

Integer Overflow or Wraparound vulnerability in yoyofr modizer.This issue affects modizer: before 4.1.1.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Yoyofr
Products
Modizer
CVE-2026-24889

soroban-sdk has overflow in Bytes::slice, Vec::slice, GenRange::gen_range for u64

soroban-sdk is a Rust SDK for Soroban contracts. Arithmetic overflow can be triggered in the `Bytes::slice`, `Vec::slice`, and `Prng::gen_range` (for `u64`) methods in the `soroban-sdk` in versions up to and including `25.0.1`, `23.5.1`, and `25.0.2`. Contracts that pass user-controlled or computed range bounds to `Bytes::slice`, `Vec::slice`, or `Prng::gen_range` may silently operate on incorrect data ranges or generate random numbers from an unintended range, potentially resulting in corrupted contract state. Note that the best practice when using the `soroban-sdk` and building Soroban contracts is to always enable `overflow-checks = true`. The `stellar contract init` tool that prepares the boiler plate for a Soroban contract, as well as all examples and docs, encourage the use of configuring `overflow-checks = true` on `release` profiles so that these arithmetic operations fail rather than silently wrap. Contracts are only impacted if they use `overflow-checks = false` either explicitly or implicitly. It is anticipated the majority of contracts could not be impacted because the best practice encouraged by tooling is to enable `overflow-checks`. The fix available in `25.0.1`, `23.5.1`, and `25.0.2` replaces bare arithmetic with `checked_add` / `checked_sub`, ensuring overflow traps regardless of the `overflow-checks` profile setting. As a workaround, contract workspaces can be configured with a profile available in the GitHub Securtity Advisory to enable overflow checks on the arithmetic operations. This is the best practice when developing Soroban contracts, and the default if using the contract boilerplate generated using `stellar contract init`. Alternatively, contracts can validate range bounds before passing them to `slice` or `gen_range` to ensure the conversions cannot overflow.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Stellar
Products
Rs-soroban-sdk
CVE-2026-34238

ImageMagick: Integer overflow in despeckle operation causes heap buffer overflow on 32-bit builds

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, an integer overflow in the despeckle operation causes a heap buffer overflow on 32-bit builds that will result in an out of bounds write. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

CVSS 3.1 · 5.1 Medium EPSS < 1% KEV · Not listed
Vendors
Imagemagick
Products
Imagemagick
CVE-2026-33899

ImageMagick: Heap BufferOverflow write of single zero byte when parsing XML

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-189 and 6.9.13-44, when `Magick` parses an XML file it is possible that a single zero byte is written out of the bounds. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Imagemagick
Products
Imagemagick
CVE-2026-33900

ImageMagick has a Heap overflow caused by integer overflow/wraparound in viff encoder on 32-bit builds

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, the viff encoder contains an integer truncation/wraparound issue on 32-bit builds that could trigger an out of bounds heap write, potentially causing a crash. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
Imagemagick
Products
Imagemagick
CVE-2026-21347

Bridge | Integer Overflow or Wraparound (CWE-190)

Bridge versions 15.1.3, 16.0.1 and earlier are affected by an Integer Overflow or Wraparound vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Adobe Apple Microsoft
Products
Bridge Macos Windows
CVE-2026-40312

ImageMagick: Off-by-One in MSL decoder could result in crash

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, an off by one error in the MSL decoder could result in a crash when a malicous MSL file is read. This issue has been fixed in version 7.1.2-19.

CVSS 3.1 · 6.2 Medium EPSS < 1% KEV · Not listed
Vendors
Imagemagick
Products
Imagemagick
CVE-2026-39855

osslsigncode has an Integer Underflow in PE Page Hash Calculation Can Cause Out-of-Bounds Read

osslsigncode is a tool that implements Authenticode signing and timestamping. Prior to 2.13, an integer underflow vulnerability exists in osslsigncode version 2.12 and earlier in the PE page-hash computation code (pe_page_hash_calc()). When page hash processing is performed on a PE file, the function subtracts hdrsize from pagesize without first validating that pagesize >= hdrsize. If a malicious PE file sets SizeOfHeaders (hdrsize) larger than SectionAlignment (pagesize), the subtraction underflows and produces a very large unsigned length. The code allocates a zero-filled buffer of pagesize bytes and then attempts to hash pagesize - hdrsize bytes from that buffer. After the underflow, this results in an out-of-bounds read from the heap and can crash the process. The vulnerability can be triggered while signing a malicious PE file with page hashing enabled (-ph), or while verifying a malicious signed PE file that already contains page hashes. Verification of an already signed file does not require the verifier to pass -ph. This vulnerability is fixed in 2.13.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Mtrojnar Osslsigncode Project
Products
Osslsigncode Osslsigncode
CVE-2026-0619

Integer Wraparound DoS in Silicon Labs Matter Implementation

A reachable infinite loop via an integer wraparound is present in Silicon Labs' Matter SDK which allows an attacker to trigger a denial of service. A hard reset is required to recover the device.

CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
Vendors
Silabs.com
Products
Silicon Labs Matter
CVE-2026-21870

The BACnet Protocol Stack library has an Off-by-one Stack-based Buffer Overflow in tokenizer_string

BACnet Protocol Stack library provides a BACnet application layer, network layer and media access (MAC) layer communications services. In 1.4.2, 1.5.0.rc2, and earlier, an off-by-one stack-based buffer overflow in the ubasic interpreter causes a crash (SIGABRT) when processing string literals longer than the buffer limit. The tokenizer_string function in src/bacnet/basic/program/ubasic/tokenizer.c incorrectly handles null termination for maximum-length strings. It writes a null byte to dest[40] when the buffer size is only 40 (indices 0-39), triggering a stack overflow.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Bacnetstack
Products
Bacnet Stack
CVE-2026-2703

xlnt-community xlnt Encrypted XLSX File base64.cpp decode_base64 off-by-one

A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::decode_base64 of the file source/detail/cryptography/base64.cpp of the component Encrypted XLSX File Parser. Executing a manipulation can lead to off-by-one. The attack requires local access. The exploit has been made available to the public and could be used for attacks. This patch is called f2d7bf494e5c52706843cf7eb9892821bffb0734. Applying a patch is advised to resolve this issue.

CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Vendors
Xlnt-community
Products
Xlnt
CVE-2026-2588

Crypt::NaCl::Sodium versions through 2.001 for Perl has an integer overflow flaw on 32-bit systems

Crypt::NaCl::Sodium versions through 2.001 for Perl has an integer overflow flaw on 32-bit systems. Sodium.xs casts a STRLEN (size_t) to unsigned long long when passing a length pointer to libsodium functions. On 32-bit systems size_t is typically 32-bits while an unsigned long long is at least 64-bits.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Vendors
Timlegge
Products
Crypt::nacl::sodium Crypt\
CVE-2026-25897

ImageMagick has heap overflow in sun decoder on 32-bit systems that can result in out of bounds write

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, an Integer Overflow vulnerability exists in the sun decoder. On 32-bit systems/builds, a carefully crafted image can lead to an out of bounds heap write. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Imagemagick
Products
Imagemagick
CVE-2026-25967

ImageMagick has stack buffer overflow in FTXT reader via oversized integer field

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-15, a stack-based buffer overflow exists in the ImageMagick FTXT image reader. A crafted FTXT file can cause out-of-bounds writes on the stack, leading to a crash. Version 7.1.2-15 contains a patch.

CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Imagemagick
Products
Imagemagick