CVE Catalog

CVE-2026-21383

HighCVSS 7.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.07%

0th percentile - higher than 0% of all known CVEs

Summary

The vulnerability is caused by using a static initialization vector (IV) for AES-GCM key wrapping. AES-GCM requires a unique IV for each operation to ensure cryptographic security.

Risk Assessment

Using a static IV allows an attacker to recover the keystream and potentially decrypt or modify protected data, leading to a breach of confidentiality and integrity of cryptographic keys.

Recommendation

Update the cryptographic library to a version that generates a unique IV for each AES-GCM key wrapping call. As a temporary workaround, manually generate a random IV for each operation.

Original NVD description (English source)

Cryptographic Issue when using a static initialization vector for AES-GCM key wrapping, which requires a unique value for each call to ensure security.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS