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Analyzed 3 months ago. based on code collected 3 months ago.

Project Summary

strongSwan is an open source IPsec-based VPN solution. It features IKEv1 and IKEv2 keying capabilities and runs on Linux, Android, FreeBSD, macOS, iOS and Windows.

Tags

authentication c cross_platform cryptography dual_license encryption gateway ike ikev2 ipsec linux network networking ocsp pkcs11 security smartcard tunnel vpn x509

In a Nutshell, strongSwan...

GNU General Public License v2.0 or later
Permitted

Commercial Use

Modify

Distribute

Place Warranty

Forbidden

Sub-License

Hold Liable

Required

Distribute Original

Disclose Source

Include Copyright

State Changes

Include License

These details are provided for information only. No information here is legal advice and should not be used as such.

Project Security

Vulnerabilities per Version ( last 10 releases )

Project Vulnerability Report

Security Confidence Index

Poor security track-record
Favorable security track-record

Vulnerability Exposure Index

Many reported vulnerabilities
Few reported vulnerabilities

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About Project Security

 Code locations have been removed since last analysis

At one point, Open Hub analyzed source code for this project based on code location(s) available at that time. Since then, the code locations have been removed.

Languages

C
86%
20 Other
14%

30 Day Summary

Jun 20 2026 — Jul 20 2026

12 Month Summary

Jul 20 2025 — Jul 20 2026
  • 325 Commits
    Down -42 (11%) from previous 12 months
  • 15 Contributors
    Up + 3 (25%) from previous 12 months

Static Analysis ( Generated by Coverity Scan for strongSwan )

Repository URL: https://github.com/strongswan/strongswan

Version: strongswan-6.0.6dr1

2026-04-16
Last Analyzed
526,849
Lines of Code Analyze
0.06
Defect Density

Defects by status for current build

1,137
Total defects
34
Outstanding
344
Fixed

CWE Top 25 defects

ID CWE-Name Number of Defects
190 Integer Overflow or Wraparound 2