CVE-2026-5264

8.3 highEPSS 0.4%

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.

Severity

CVSS 4.0

8.3 high

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

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 38% of CVEs (scores of 2026-10-31)
CWE: CWE-122
Published: 2026-04-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

wolfssl:wolfssl

References

https://github.com/wolfssl/wolfssl/pull/10076

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