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CVE-2013-6076

19
FAUCET Score

CVE-2013-6076 describes a denial-of-service vulnerability affecting strongSwan versions 5.0.2 through 5.1.0. A remote attacker can trigger a NULL pointer dereference, crashing the charon daemon, by sending a specially crafted IKEv1 fragmentation packet. This vulnerability has a CVSS score of 5.0, indicating a medium severity due to its network-based attack vector and potential for service disruption. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.0.2CPE matchmatch criteria
cpe:2.3:a:strongswan:strongswan:5.0.2:*:*:*:*:*:*:*
5.0.3CPE matchmatch criteria
cpe:2.3:a:strongswan:strongswan:5.0.3:*:*:*:*:*:*:*
5.0.4CPE matchmatch criteria
cpe:2.3:a:strongswan:strongswan:5.0.4:*:*:*:*:*:*:*
5.1.0CPE matchmatch criteria
cpe:2.3:a:strongswan:strongswan:5.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.87%
Probability of exploitation in next 30 days
EPSS Percentile
77.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0187 is in the 65th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2013-6076Moderate

strongswan: denial of service when handling IKEv1 fragmentation payloads

Nov 1, 2013

References

strongswan.org / blog/2013/11/01/strongswan-denial-of-service-vulnerability-%28cve-2013-6076%29.html
PatchVendor Advisory