CVE-2026-3503

Severity CVSS v4.0:

MEDIUM

Type:

Unavailable / Other

Publication date:

19/03/2026

Last modified:

20/03/2026

Description

Protection mechanism failure in wolfCrypt post-quantum implementations (ML-KEM and ML-DSA) in wolfSSL on ARM Cortex-M microcontrollers allows a physical attacker to compromise key material and/or cryptographic outcomes via induced transient faults that corrupt or redirect seed/pointer values during Keccak-based expansion. This issue affects wolfSSL (wolfCrypt): commit hash d86575c766e6e67ef93545fa69c04d6eb49400c6.

Impact

Vector 4.0

CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N/U:Amber CVSS v4.0 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N/U:Amber

Attack Vector (AV): Physical
Attack Complexity (AC): High
Attack Requirements (AT): Present
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): High
Integrity (VI): Low
Availability (VA): None
Confidentiality (SC): Low
Integrity (SI): Low
Availability (SA): None
Provider Urgency (U): Amber

Base Score 4.0

4.30

Severity 4.0

MEDIUM

References to Advisories, Solutions, and Tools

https://github.com/wolfSSL/wolfssl/pull/9734