Libgcrypt: Libgcrypt: Denial of Service and buffer overflow via crafted ECDH ciphertext

A flaw was found in Libgcrypt. A remote attacker could exploit this vulnerability by sending crafted Elliptic Curve Diffie-Hellman ECDH ciphertext to the gcrypkdecrypt function. This can lead to a heap-based buffer overflow, potentially causing a denial of service DoS condition...

OESA-2026-2345 libgcrypt security update

Libgcrypt is a general purpose cryptographic library originally based on code from GnuPG. Security Fixes: Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcrypkdecrypt.CVE-2026-41989...

EUVD-2026-25192

Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcrypkdecrypt...

CVE-2026-41989

Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcrypkdecrypt...

PT-2026-34640

Name of the Vulnerable Software and Affected Versions Libgcrypt versions prior to 1.12.2 Description A heap-based buffer overflow and denial of service can occur when processing crafted ECDH ciphertext through the gcry pk decrypt function. Recommendations Update to version 1.12.2 or later...