EUVD-2026-54489

A heap-buffer-overflow vulnerability exists in the nothings stb TrueType library, up to version 1.26, that is used for parsing TrueType font files. The vulnerability exists in the stbttGetGlyphShapeTT function within the nothings stbtruetype.h library when parsing malformed TTF TrueType Font file...

CVE-2026-18497

The CVE affects the nothings stb TrueType library (stb_truetype.h) up to version 1.26, specifically the stbtt__GetGlyphShapeTT() parser when loading malformed TrueType fonts. The issue arises during glyph data parsing: if endPtsOfContours is inflated and the remaining glyph data is truncated, the...

📄 FreeType Font Rendering Overflow Test Harness / Crash Detection

This C program is a testing harness built around the FreeType font rendering library to detect potential memory corruption issues such as heap buffer overflows when loading malicious or malformed TrueType font files...

Memory Allocation with Excessive Size Value

Overview Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value through the source.view path in font/sfnt. An attacker can force the parser to allocate a large read buffer by supplying a corrupt or malicious font file that advertises data beyond the file's...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

Mozilla: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer

The Mozilla Foundation Security Advisory describes this flaw as: On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font...

USN-6062-1 freetype vulnerability

It was discovered that FreeType incorrectly handled certain malformed font files. If a user were tricked into using a specially crafted font file, a remote attacker could cause FreeType to crash, or possibly execute arbitrary code...

Apple ImageIO Buffer Error Vulnerability

Apple ImageIO is an Apple Inc. component necessary for parsing and writing image data in IOS mobile devices. A security vulnerability exists in Apple ImageIO where processing of maliciously crafted fonts may result in a process memory leak. The following products and versions are affected: macOS...

USN-4593-2 freetype vulnerability

USN-4593-1 fixed a vulnerability in FreeType. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Sergei Glazunov discovered that FreeType did not correctly handle certain malformed font files. If a user were tricked into using a specially crafted font...

USN-4593-1 freetype vulnerability

Sergei Glazunov discovered that FreeType did not correctly handle certain malformed font files. If a user were tricked into using a specially crafted font file, a remote attacker could cause FreeType to crash or possibly execute arbitrary code with user privileges...