CVE-2013-6466

Openswan 2.6.39 and earlier allows remote attackers to cause a denial of service (NULL pointer dereference and IKE daemon restart) via IKEv2 packets that lack expected payloads.

Published: 2014-01-26 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-6466 is rated Moderate Risk (51/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.66%). EPSS rose +1.66% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-6466

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.01% 2.66% +1.66%
2 2025-12-03 1.10% 1.01% -0.10%
3 2025-04-24 — 1.10% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-6466

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2013-6466

OS Trackers for CVE-2013-6466

vendor priority summary link
gentoo normal CVE-2013-6466: 1 GLSA(s) (201411-07), 1 atom(s) (net-misc/openswan); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-6466
redhat medium — https://access.redhat.com/security/cve/CVE-2013-6466
ubuntu medium CVE-2013-6466 medium priority: Ubuntu including 1 source packages (openswan), 17 status rows across 17 suites (artful, bionic, cosmic, disco, lucid, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 11, ignored 5, needs-triage 1. https://ubuntu.com/security/CVE-2013-6466

NVD evaluator notes for CVE-2013-6466

Comment: Per: http://cwe.mitre.org/data/definitions/476.html "CWE-476: NULL Pointer Dereference"

Affected software / configurations for CVE-2013-6466

Vendor Product Version Raw CPE
xelerance openswan <= 2.6.39 cpe:2.3:a:xelerance:openswan:*:*:*:*:*:*:*:*
xelerance openswan 2.3.0 cpe:2.3:a:xelerance:openswan:2.3.0:*:*:*:*:*:*:*
xelerance openswan 2.3.1 cpe:2.3:a:xelerance:openswan:2.3.1:*:*:*:*:*:*:*
xelerance openswan 2.4.0 cpe:2.3:a:xelerance:openswan:2.4.0:*:*:*:*:*:*:*
xelerance openswan 2.4.1 cpe:2.3:a:xelerance:openswan:2.4.1:*:*:*:*:*:*:*
xelerance openswan 2.4.2 cpe:2.3:a:xelerance:openswan:2.4.2:*:*:*:*:*:*:*
xelerance openswan 2.4.3 cpe:2.3:a:xelerance:openswan:2.4.3:*:*:*:*:*:*:*
xelerance openswan 2.4.4 cpe:2.3:a:xelerance:openswan:2.4.4:*:*:*:*:*:*:*
xelerance openswan 2.4.5 cpe:2.3:a:xelerance:openswan:2.4.5:*:*:*:*:*:*:*
xelerance openswan 2.4.6 cpe:2.3:a:xelerance:openswan:2.4.6:*:*:*:*:*:*:*
xelerance openswan 2.4.7 cpe:2.3:a:xelerance:openswan:2.4.7:*:*:*:*:*:*:*
xelerance openswan 2.4.8 cpe:2.3:a:xelerance:openswan:2.4.8:*:*:*:*:*:*:*
xelerance openswan 2.4.9 cpe:2.3:a:xelerance:openswan:2.4.9:*:*:*:*:*:*:*
xelerance openswan 2.4.10 cpe:2.3:a:xelerance:openswan:2.4.10:*:*:*:*:*:*:*
xelerance openswan 2.4.11 cpe:2.3:a:xelerance:openswan:2.4.11:*:*:*:*:*:*:*
xelerance openswan 2.4.12 cpe:2.3:a:xelerance:openswan:2.4.12:*:*:*:*:*:*:*
xelerance openswan 2.4.13 cpe:2.3:a:xelerance:openswan:2.4.13:*:*:*:*:*:*:*
xelerance openswan 2.5.0 cpe:2.3:a:xelerance:openswan:2.5.0:*:*:*:*:*:*:*
xelerance openswan 2.5.0 cpe:2.3:a:xelerance:openswan:2.5.0:sbs4:*:*:*:*:*:*
xelerance openswan 2.5.0 cpe:2.3:a:xelerance:openswan:2.5.0:sbs5:*:*:*:*:*:*
xelerance openswan 2.5.01 cpe:2.3:a:xelerance:openswan:2.5.01:*:*:*:*:*:*:*
xelerance openswan 2.5.02 cpe:2.3:a:xelerance:openswan:2.5.02:*:*:*:*:*:*:*
xelerance openswan 2.5.03 cpe:2.3:a:xelerance:openswan:2.5.03:*:*:*:*:*:*:*
xelerance openswan 2.5.04 cpe:2.3:a:xelerance:openswan:2.5.04:*:*:*:*:*:*:*
xelerance openswan 2.5.05 cpe:2.3:a:xelerance:openswan:2.5.05:*:*:*:*:*:*:*
xelerance openswan 2.5.06 cpe:2.3:a:xelerance:openswan:2.5.06:*:*:*:*:*:*:*
xelerance openswan 2.5.07 cpe:2.3:a:xelerance:openswan:2.5.07:*:*:*:*:*:*:*
xelerance openswan 2.5.08 cpe:2.3:a:xelerance:openswan:2.5.08:*:*:*:*:*:*:*
xelerance openswan 2.5.09 cpe:2.3:a:xelerance:openswan:2.5.09:*:*:*:*:*:*:*
xelerance openswan 2.5.10 cpe:2.3:a:xelerance:openswan:2.5.10:*:*:*:*:*:*:*
xelerance openswan 2.5.11 cpe:2.3:a:xelerance:openswan:2.5.11:*:*:*:*:*:*:*
xelerance openswan 2.5.12 cpe:2.3:a:xelerance:openswan:2.5.12:*:*:*:*:*:*:*
xelerance openswan 2.5.13 cpe:2.3:a:xelerance:openswan:2.5.13:*:*:*:*:*:*:*
xelerance openswan 2.5.14 cpe:2.3:a:xelerance:openswan:2.5.14:*:*:*:*:*:*:*
xelerance openswan 2.5.15 cpe:2.3:a:xelerance:openswan:2.5.15:*:*:*:*:*:*:*
xelerance openswan 2.5.16 cpe:2.3:a:xelerance:openswan:2.5.16:*:*:*:*:*:*:*
xelerance openswan 2.5.17 cpe:2.3:a:xelerance:openswan:2.5.17:*:*:*:*:*:*:*
xelerance openswan 2.5.18 cpe:2.3:a:xelerance:openswan:2.5.18:*:*:*:*:*:*:*
xelerance openswan 2.6.01 cpe:2.3:a:xelerance:openswan:2.6.01:*:*:*:*:*:*:*
xelerance openswan 2.6.02 cpe:2.3:a:xelerance:openswan:2.6.02:*:*:*:*:*:*:*
xelerance openswan 2.6.03 cpe:2.3:a:xelerance:openswan:2.6.03:*:*:*:*:*:*:*
xelerance openswan 2.6.04 cpe:2.3:a:xelerance:openswan:2.6.04:*:*:*:*:*:*:*
xelerance openswan 2.6.05 cpe:2.3:a:xelerance:openswan:2.6.05:*:*:*:*:*:*:*
xelerance openswan 2.6.06 cpe:2.3:a:xelerance:openswan:2.6.06:*:*:*:*:*:*:*
xelerance openswan 2.6.07 cpe:2.3:a:xelerance:openswan:2.6.07:*:*:*:*:*:*:*
xelerance openswan 2.6.08 cpe:2.3:a:xelerance:openswan:2.6.08:*:*:*:*:*:*:*
xelerance openswan 2.6.09 cpe:2.3:a:xelerance:openswan:2.6.09:*:*:*:*:*:*:*
xelerance openswan 2.6.10 cpe:2.3:a:xelerance:openswan:2.6.10:*:*:*:*:*:*:*
xelerance openswan 2.6.11 cpe:2.3:a:xelerance:openswan:2.6.11:*:*:*:*:*:*:*
xelerance openswan 2.6.12 cpe:2.3:a:xelerance:openswan:2.6.12:*:*:*:*:*:*:*
xelerance openswan 2.6.13 cpe:2.3:a:xelerance:openswan:2.6.13:*:*:*:*:*:*:*
xelerance openswan 2.6.14 cpe:2.3:a:xelerance:openswan:2.6.14:*:*:*:*:*:*:*
xelerance openswan 2.6.15 cpe:2.3:a:xelerance:openswan:2.6.15:*:*:*:*:*:*:*
xelerance openswan 2.6.16 cpe:2.3:a:xelerance:openswan:2.6.16:*:*:*:*:*:*:*
xelerance openswan 2.6.17 cpe:2.3:a:xelerance:openswan:2.6.17:*:*:*:*:*:*:*
xelerance openswan 2.6.18 cpe:2.3:a:xelerance:openswan:2.6.18:*:*:*:*:*:*:*
xelerance openswan 2.6.19 cpe:2.3:a:xelerance:openswan:2.6.19:*:*:*:*:*:*:*
xelerance openswan 2.6.20 cpe:2.3:a:xelerance:openswan:2.6.20:*:*:*:*:*:*:*
xelerance openswan 2.6.21 cpe:2.3:a:xelerance:openswan:2.6.21:*:*:*:*:*:*:*
xelerance openswan 2.6.22 cpe:2.3:a:xelerance:openswan:2.6.22:*:*:*:*:*:*:*
xelerance openswan 2.6.23 cpe:2.3:a:xelerance:openswan:2.6.23:*:*:*:*:*:*:*
xelerance openswan 2.6.24 cpe:2.3:a:xelerance:openswan:2.6.24:*:*:*:*:*:*:*
xelerance openswan 2.6.25 cpe:2.3:a:xelerance:openswan:2.6.25:*:*:*:*:*:*:*
xelerance openswan 2.6.26 cpe:2.3:a:xelerance:openswan:2.6.26:*:*:*:*:*:*:*
xelerance openswan 2.6.27 cpe:2.3:a:xelerance:openswan:2.6.27:*:*:*:*:*:*:*
xelerance openswan 2.6.28 cpe:2.3:a:xelerance:openswan:2.6.28:*:*:*:*:*:*:*
xelerance openswan 2.6.29 cpe:2.3:a:xelerance:openswan:2.6.29:*:*:*:*:*:*:*
xelerance openswan 2.6.30 cpe:2.3:a:xelerance:openswan:2.6.30:*:*:*:*:*:*:*
xelerance openswan 2.6.31 cpe:2.3:a:xelerance:openswan:2.6.31:*:*:*:*:*:*:*
xelerance openswan 2.6.32 cpe:2.3:a:xelerance:openswan:2.6.32:*:*:*:*:*:*:*
xelerance openswan 2.6.33 cpe:2.3:a:xelerance:openswan:2.6.33:*:*:*:*:*:*:*
xelerance openswan 2.6.34 cpe:2.3:a:xelerance:openswan:2.6.34:*:*:*:*:*:*:*
xelerance openswan 2.6.35 cpe:2.3:a:xelerance:openswan:2.6.35:*:*:*:*:*:*:*
xelerance openswan 2.6.36 cpe:2.3:a:xelerance:openswan:2.6.36:*:*:*:*:*:*:*
xelerance openswan 2.6.37 cpe:2.3:a:xelerance:openswan:2.6.37:*:*:*:*:*:*:*
xelerance openswan 2.6.38 cpe:2.3:a:xelerance:openswan:2.6.38:*:*:*:*:*:*:*

References for CVE-2013-6466

cvelogic Threat Intelligence