CVE-2026-77219

GNU Emacs before 31.0.91 contains an integer overflow in the PBM/PPM/PGM image loader that allows an attacker to leak heap memory contents by supplying a crafted image with large dimensions and an elevated max color index. The image loader multiplies image dimensions and channel count using signe...

CVE-2026-77219 GNU Emacs < 31.0.91 Heap Over-Read via PBM/PPM/PGM Image Loader

GNU Emacs before 31.0.91 contains an integer overflow in the PBM/PPM/PGM image loader that allows an attacker to leak heap memory contents by supplying a crafted image with large dimensions and an elevated max color index. The image loader multiplies image dimensions and channel count using signe...

CVE-2026-77219 GNU Emacs < 31.0.91 Heap Over-Read via PBM/PPM/PGM Image Loader

GNU Emacs before 31.0.91 contains an integer overflow in the PBM/PPM/PGM image loader that allows an attacker to leak heap memory contents by supplying a crafted image with large dimensions and an elevated max color index. The image loader multiplies image dimensions and channel count using signe...

EUVD-2026-64138

GNU Emacs before 31.0.91 contains an integer overflow in the PBM/PPM/PGM image loader that allows an attacker to leak heap memory contents by supplying a crafted image with large dimensions and an elevated max color index. The image loader multiplies image dimensions and channel count using signe...

CVE-2026-77219

GNU Emacs before 31.0.91 is affected by an integer overflow in the PBM/PPM/PGM image loader . The loader multiplies image dimensions and channel count using signed integer arithmetic; for sufficiently large values the result wraps to a negative number, bypassing the bounds check and causing the p...

GNU Emacs: Arbitrary code execution

Background GNU Emacs is the extensible, customizable, self-documenting real-time display editor. Description A vulnerability has been discovered in GNU Emacs. Please review the CVE identifier referenced below for details. Impact An attacker could achieve arbitrary code execution by tricking a use...

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

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...

CVE-2026-71392

GNU Emacs for Android is vulnerable to an integer overflow in the sfntreadcmapformat12 function in src/sfnt.c. When processing a crafted TrueType font file, an unguarded addition in the xmalloc allocation call wraps around on 32-bit builds, causing a heap buffer overflow write. An attacker can...

CVE-2026-71394

GNU Emacs for Android improperly validates the table header input in sfntreadtabledirectory in src/sfnt.c. Due to an incorrect comparison variable in the read-length check, a crafted font file that claims to contain more table directory entries than actually present causes the parser to return a...

DEBIAN-CVE-2026-71391

GNU Emacs for Android contains an off-by-one error in the gvar table parser in src/sfnt.c. The shared-coordinate index boundary check in sfntvarysimpleglyph and sfntvarycompoundglyph uses a strict greater-than comparison instead of greater-than-or-equal, allowing a crafted TrueType variable font ...

CVE-2026-71391

GNU Emacs for Android contains an off-by-one error in the gvar table parser in src/sfnt.c. The shared-coordinate index boundary check in sfntvarysimpleglyph and sfntvarycompoundglyph uses a strict greater-than comparison instead of greater-than-or-equal, allowing a crafted TrueType variable font ...

CVE-2026-71394

GNU Emacs for Android improperly validates the table header input in sfntreadtabledirectory in src/sfnt.c. Due to an incorrect comparison variable in the read-length check, a crafted font file that claims to contain more table directory entries than actually present causes the parser to return a...

CVE-2026-71394

CVE-2026-71394 affects GNU Emacs for Android. The flaw in sfnt_read_table_directory() (src/sfnt.c) arises from an incorrect read-length check, allowing a crafted font to report more table directory entries than exist and return a structure with uninitialized heap memory in table directory entries...

CVE-2026-71394 Heap Use of Uninitialized Memory in GNU Emacs for Android

GNU Emacs for Android improperly validates the table header input in sfntreadtabledirectory in src/sfnt.c. Due to an incorrect comparison variable in the read-length check, a crafted font file that claims to contain more table directory entries than actually present causes the parser to return a...

CVE-2026-71393

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...

CVE-2026-71393

CVE-2026-71393 affects GNU Emacs for Android. A 32-bit font length value in sfnt_read_name_table() can overflow when computing the allocation size, causing an undersized heap allocation. A crafted TrueType font can trigger a read() past the buffer, leading to heap memory corruption and potential ...