PT-2026-52564 · Wolfssl · Wolfssl

Publicado 2026-06-25 · Atualizado 2026-06-25 · CVE-2026-12340

Mitre

CVSS v4.0

6.3

Média

Vetor base

AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Out-of-bounds heap read during SM2/SM3 certificate signature verification. When parsing a certificate with an SM3wSM2 signature, the Subject Key Identifier computation reads the trailing 65 bytes of the public key without checking that the key is at least that long. A public key shorter than 65 bytes results in an out-of-bounds heap read, leading to a potential crash (denial of service); there is no out-of-bounds write. Note this only affects builds with SM2 support (--enable-sm2 or --enable-all).

Correção

Out of bounds Read

Enumeração de Fraquezas

CWE-125

Identificadores relacionados

CVE-2026-12340

Produtos afetados

Wolfssl

Referências · 3

• https://github.com/wolfSSL/wolfssl/pull/10641 · Correção
• https://nvd.nist.gov/vuln/detail/CVE-2026-12340 · Nota de Segurança
• https://wolfssl.com/docs/security-vulnerabilities · Nota