Timing Attack

Overview Affected versions of this package are vulnerable to Timing Attack in the generic elliptic curve scalar multiplication used by ECDSA and SM2, which performs non constant time BIGNUM operations on a scalar derived from the secret nonce. An attacker can learn nonce information and recover t...

AZL-105480 CVE-2026-54872 affecting package edk2 for versions less than 20240524git3e722403cd16-21

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

CVE-2026-54872

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

CVE-2026-54872 Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

EUVD-2026-89004

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

CVE-2026-54872

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

CVE-2026-54872

A timing side-channel vulnerability exists in OpenSSL 's generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations. The flaw occurs because the generic implementation uses non-constant-time BIGNUM operations to pad secret scalars for curves lacking a dedicated const...

PT-2026-109026

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

PT-2026-109077

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

PT-2026-109097

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

PT-2026-109007

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

PT-2026-109016

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

CVE-2026-54872: Observable Timing Discrepancy

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

CVE-2026-54872: Observable Timing Discrepancy

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

PT-2026-102650

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description Generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations leaks information about the secret nonce through timing discrepancies...

PT-2026-109047

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...

PT-2026-109063

Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing. Impact summary: An attacker able to measure signing times may learn...