CVE-2026-71391

A flaw was found in GNU Emacs, specifically in GNU Emacs for Android. An off-by-one error can occur when a specially crafted font file is processed due to an improper bounds check. This can cause a heap-based buffer over-read, exposing heap memory contents. Mitigation Do not load untrusted font...

CVE-2026-71393

A flaw was found in GNU Emacs, specifically in GNU Emacs for Android. An integer overflow can occur when a specially crafted font file is processed on 32-bit systems due to an improper overflow checking. This can cause an undersized heap allocation and subsequently a heap-based buffer overflow,...

CVE-2026-71392

A flaw was found in GNU Emacs, specifically in GNU Emacs for Android. An integer overflow can occur when a specially crafted font file is processed on 32-bit systems due to an unguarded addition during memory allocation. This can cause an undersized heap allocation and subsequently a heap-based...

CVE-2026-71394

A flaw was found in GNU Emacs, specifically in GNU Emacs for Android. The parser can return a structure with uninitialized heap memory when a specially crafted font file is processed due to an improper validation. This can lead to the use of uninitialized heap data, potentially resulting in...

CVE-2026-71393 Heap Buffer Overflow in GNU Emacs for Android

GNU Emacs for Android is vulnerable to an integer overflow in sfntreadnametable in src/sfnt.c. The function computes an allocation size using a 32-bit length value from a TrueType font file without overflow checking. On 32-bit targets, a crafted font causes the calculation to wrap, resulting in a...