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CVE-2006-4436

UnknownEPSS 1.74%

Last modified

CVE-2006-4436 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.74% chance of exploitation in the next 30 days.

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

EPSS Probability
1.74%

74.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
OpenbsdOpenbsd3.8
OpenbsdOpenbsd3.9

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2006-4436?
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.
How severe is CVE-2006-4436?
Severity scoring for CVE-2006-4436 is pending analysis. The EPSS model estimates a 1.74% probability of exploitation in the next 30 days.
How do I fix CVE-2006-4436?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2006-4436?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST