CVE-2026-3337
Published: Mar 2, 2026
Modified: Mar 3, 2026
CVSS v3.1
5.9
Description
Observable timing discrepancy in AES-CCM decryption in AWS-LC allows an unauthenticated user to potentially determine authentication tag validity via timing analysis. The impacted implementations are through the EVP CIPHER API: EVP_aes_128_ccm, EVP_aes_192_ccm, and EVP_aes_256_ccm. Customers of AWS services do not need to take action. Applications using AWS-LC should upgrade to AWS-LC version 1.69.0.
| Vendor | Product | Versions |
|---|---|---|
AWS | AWS-LC | affected 1.21.0 - < 1.69.0 |
AWS | AWS-LC-FIPS | affected 3.0.0 - < 3.2.0 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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