PT-2026-52587 · Wolfssl · Wolfssl

Nicholas Carlini · Publicado 2026-06-25 · Atualizado 2026-06-25 · CVE-2026-6679

Mitre

CVSS v4.0

8.8

Alta

Vetor base

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

A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer is authenticated. The buffer overflow was due to an integer truncation when computing the length of the ACK record-number list, causing an undersized buffer to be allocated and then overrun. This affects builds using DTLS 1.3 and wolfSSL version 5.9.0 and earlier. A fix was added to the 5.9.1 release.

Correção

Integer Overflow

Memory Corruption

Enumeração de Fraquezas

CWE-190

CWE-197

CWE-787

Identificadores relacionados

CVE-2026-6679

Produtos afetados

Wolfssl

Referências · 3

• https://github.com/wolfSSL/wolfssl/pull/10116 · Correção
• https://nvd.nist.gov/vuln/detail/CVE-2026-6679 · Nota de Segurança
• https://wolfssl.com/docs/security-vulnerabilities · Nota