Medium severity · published Mar 19, 2026
CVE-2026-3503
Fault injection attack with ML-DSA and ML-KEM on ARM
5.2
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WW
wolfSSL (wolfCrypt) · wolfSSL Inc.
5.8.2 before 5.9.0 · source: vendor
WO
Wolfssl · Wolfssl
5.8.2 before 5.9.0 · source: NVD