CVE-2026-5446 (GCVE-0-2026-5446)

Vulnerability from cvelistv5 – Published: 2026-04-09 21:02 – Updated: 2026-04-10 18:11
VLAI
Title
wolfSSL ARIA-GCM TLS 1.2/DTLS 1.2 GCM nonce reuse
Summary
In wolfSSL, ARIA-GCM cipher suites used in TLS 1.2 and DTLS 1.2 reuse an identical 12-byte GCM nonce for every application-data record. Because wc_AriaEncrypt is stateless and passes the caller-supplied IV verbatim to the MagicCrypto SDK with no internal counter, and because the explicit IV is zero-initialized at session setup and never incremented in non-FIPS builds. This vulnerability affects wolfSSL builds configured with --enable-aria and the proprietary MagicCrypto SDK (a non-default, opt-in configuration required for Korean regulatory deployments). AES-GCM is not affected because wc_AesGcmEncrypt_ex maintains an internal invocation counter independently of the call-site guard.
Severity
6 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 18:11 UTC
CWE
  • CWE-323 - Reusing a Nonce, Key Pair in Encryption
Assigner
References
Impacted products
Vendor Product Version CPE status
wolfSSL wolfSSL Affected: 5.2.1 , < 5.9.1 (semver)
guessed Create a notification for this product.
Credits
Calif.io in collaboration with Claude and Anthropic Research
Show details on NVD website
To clipboard 

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