CVE-2006-4436

MediumCVSS 5.0/10Last modified Jun 16, 2026

Description

isakmpd in OpenBSD 3.8, 3.9, and possibly earlier versions, creates Security Associations (SA) with a replay window of size 0 when isakmpd acts as a responder during SA negotiation, which allows remote attackers to replay IPSec packets and bypass the replay protection.

Metrics

CVSS 2.0 5.0/10AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected software

No affected versions have been published.

Timeline

Published: Aug 29, 2006
Last modified: Jun 16, 2026
NVD status: Modified

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