CVE-2019-8460

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

OpenBSD kernel version <= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-1049

Affected software

No affected versions have been published.

Timeline

Published
Aug 26, 2019
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2019

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CVE-2019-8460: High severity, CVSS 7.5 | Vulnix