HarborGuard / CVE
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HIGHCVE-2026-5264Published Modified CNA wolfSSL

CVE-2026-5264: DTLS 1.3 ACK heap buffer overflow

Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted DTLS 1.3 ACK message that triggers a heap buffer overflow.

Metrics

CVSS v4.0
8.3
Severity
HIGH
Fixed in
5.9.1
Affected Products
1

Fix available

5.9.1
Affected packages
  • wolfSSL / wolfSSL
    < 5.9.1 (from 0)
CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
References