CVE-2026-56003

Summary: CVE-2026-56003 describes a heap buffer overflow in libXfont2’s PCF parsing (ComputeScaledProperties) due to missing size checks, affecting libXfont2 up to version before 2.0.8. Impact per sources: authenticated X clients could trigger code execution in the X server (per NVD entry). Affec...

PT-2026-56390

Name of the Vulnerable Software and Affected Versions libXfont2 versions prior to 2.0.8 Description A heap bufferflow occurs in the pcfReadFont function due to missing glyph bounds checking. This allows an authenticated X client to execute arbitrary code within the X server. Recommendations Updat...

xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libXfont2 name length mismatch

A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2's alias...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-006930)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006930 advisory. In the Linux kernel, the following vulnerability has been resolved: lib/fonts: fix undefined behavior in bit shift for getdefaultfont Shifting signed 32-bit value by...

UBUNTU-CVE-2026-5315

A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbttbufget8 in the library stbtruetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly...

CVE-2026-5314

A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbttInitFontinternal in the library stbtruetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made...

CVE-2025-65875

An arbitrary file upload vulnerability in the AddFont function of FPDF v1.86 and earlier allows attackers to execute arbitrary code via uploading a crafted PHP file...

MiracleLinux 3 : tetex-3.0-33.2.2.1AX (AXSA:2007-64:02)

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2007-64:02 advisory. TeTeX is an implementation of TeX for Linux or UNIX systems. TeX takes a text file and a set of formatting commands as input and creates a...

UBUNTU-CVE-2022-50511

In the Linux kernel, the following vulnerability has been resolved: lib/fonts: fix undefined behavior in bit shift for getdefaultfont Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds i...

EUVD-2025-32848

In the Linux kernel, the following vulnerability has been resolved: lib/fonts: fix undefined behavior in bit shift for getdefaultfont Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds i...

PT-2025-41016

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue within the lib/fonts module related to undefined behavior in a bit shift operation within the get default font function. Specifically, shifting a signe...

Linux Distros Unpatched Vulnerability : CVE-2018-10733

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - There is a heap-based buffer over-read in the function ftfontfacehash of gxps-fonts.c in libgxps through 0.3.0. A crafted input will lead to a remote denial of...

Linux Distros Unpatched Vulnerability : CVE-2014-2570

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Cross-site scripting XSS vulnerability in www/makesubset.php in PHP Font Lib before 0.3.1 allows remote attackers to inject arbitrary web script or HTML via the...

CLSA-2025-1750780979 freetype: Fix of CVE-2025-27363

CVE-2025-27363: fix OOB write when parsing font subglyph structures...

CVE-2020-1436

A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted fonts.For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely, aka 'Windows Font Library Remote Code Execution...

CVE-2020-1408

A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts, aka 'Microsoft Graphics Remote Code Execution Vulnerability'...

CVE-2020-0687

A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts, aka 'Microsoft Graphics Remote Code Execution Vulnerability'...

CVE-2019-1468

A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts, aka 'Win32k Graphics Remote Code Execution Vulnerability'...

CVE-2019-1441

A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts, aka 'Win32k Graphics Remote Code Execution Vulnerability'...

DEBIAN-CVE-2024-56520

An issue was discovered in tc-lib-pdf-font before 2.6.4, as used in TCPDF before 6.8.0 and other products. Fonts are mishandled, e.g., FontBBox for Type 1 and TrueType fonts is misparsed...