CVE-2026-5446 — wolfSSL ARIA-GCM TLS 1.2/DTLS 1.2 GCM nonce reuse

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
wolfSSL / wolfSSL	affected 5.2.1 before 5.9.1

CWE

CWE-323

References

https://github.com/wolfSSL/wolfssl/pull/10111

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.