CVE-2015-3240

Name: CVE-2015-3240
Creator: NVD / NIST
Published: 2015-11-09T16:59:01.557+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.77%

Last modified Jun 17, 2026

CVE-2015-3240 is a vulnerability of currently unknown severity. The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet.. EPSS estimates a 2.77% chance of exploitation in the next 30 days.

Description

The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet.

Metrics

EPSS Probability

2.77%

84.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-189

Affected Software

Vendor	Product	Versions
Libreswan	Libreswan	3.14

References

Timeline

Published: Nov 9, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-3240?

How severe is CVE-2015-3240?

Severity scoring for CVE-2015-3240 is pending analysis. The EPSS model estimates a 2.77% probability of exploitation in the next 30 days.

How do I fix CVE-2015-3240?

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-2015-3240?

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

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Source: NVD / NIST