charon/sa/ike_sa.c in the charon daemon in strongSWAN before 4.3.1 allows remote…
Priority LOW 28CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
charon/sa/ike_sa.c in the charon daemon in strongSWAN before 4.3.1 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via an invalid IKE_SA_INIT request that triggers "an incomplete state," followed by a CREATE_CHILD_SA request.
Why it matters now
EPSS 0.02947 87th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 70
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* | up to 4.3.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.0.1:*:*:*:*:*:*:* | 2.0.1 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.0.2:*:*:*:*:*:*:* | 2.0.2 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.1.0:*:*:*:*:*:*:* | 2.1.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.1.1:*:*:*:*:*:*:* | 2.1.1 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.1.2:*:*:*:*:*:*:* | 2.1.2 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.1.3:*:*:*:*:*:*:* | 2.1.3 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.1.4:*:*:*:*:*:*:* | 2.1.4 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.1.5:*:*:*:*:*:*:* | 2.1.5 | Vulnerable | strongSwan |
- cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:* Versions up to 4.3.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.0.1:*:*:*:*:*:*:* Versions 2.0.1 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.0.2:*:*:*:*:*:*:* Versions 2.0.2 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.1.0:*:*:*:*:*:*:* Versions 2.1.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.1.1:*:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.1.2:*:*:*:*:*:*:* Versions 2.1.2 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.1.3:*:*:*:*:*:*:* Versions 2.1.3 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.1.4:*:*:*:*:*:*:* Versions 2.1.4 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.1.5:*:*:*:*:*:*:* Versions 2.1.5 Vulnerable ·strongSwan
Show 60 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:strongswan:strongswan:2.2.0:*:*:*:*:*:*:* | 2.2.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.2.1:*:*:*:*:*:*:* | 2.2.1 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.2.2:*:*:*:*:*:*:* | 2.2.2 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.3.0:*:*:*:*:*:*:* | 2.3.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.3.1:*:*:*:*:*:*:* | 2.3.1 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.3.2:*:*:*:*:*:*:* | 2.3.2 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.4.0:*:*:*:*:*:*:* | 2.4.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.4.0a:*:*:*:*:*:*:* | 2.4.0a | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.4.1:*:*:*:*:*:*:* | 2.4.1 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.4.2:*:*:*:*:*:*:* | 2.4.2 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.4.3:*:*:*:*:*:*:* | 2.4.3 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.4.4:*:*:*:*:*:*:* | 2.4.4 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.5.0:*:*:*:*:*:*:* | 2.5.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.5.1:*:*:*:*:*:*:* | 2.5.1 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.5.2:*:*:*:*:*:*:* | 2.5.2 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.5.3:*:*:*:*:*:*:* | 2.5.3 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.5.4:*:*:*:*:*:*:* | 2.5.4 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.5.5:*:*:*:*:*:*:* | 2.5.5 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.5.6:*:*:*:*:*:*:* | 2.5.6 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.5.7:*:*:*:*:*:*:* | 2.5.7 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.6.0:*:*:*:*:*:*:* | 2.6.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.6.1:*:*:*:*:*:*:* | 2.6.1 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.6.2:*:*:*:*:*:*:* | 2.6.2 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.6.3:*:*:*:*:*:*:* | 2.6.3 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.6.4:*:*:*:*:*:*:* | 2.6.4 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.6.16:*:*:*:*:*:*:* | 2.6.16 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.6.20:*:*:*:*:*:*:* | 2.6.20 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.7.0:*:*:*:*:*:*:* | 2.7.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.8.0:*:*:*:*:*:*:* | 2.8.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.8.1:*:*:*:*:*:*:* | 2.8.1 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.8.2:*:*:*:*:*:*:* | 2.8.2 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.8.3:*:*:*:*:*:*:* | 2.8.3 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.8.4:*:*:*:*:*:*:* | 2.8.4 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.8.5:*:*:*:*:*:*:* | 2.8.5 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.8.6:*:*:*:*:*:*:* | 2.8.6 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.8.7:*:*:*:*:*:*:* | 2.8.7 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:2.8.8:*:*:*:*:*:*:* | 2.8.8 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.0.0:*:*:*:*:*:*:* | 4.0.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.0.1:*:*:*:*:*:*:* | 4.0.1 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.0.2:*:*:*:*:*:*:* | 4.0.2 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.0.3:*:*:*:*:*:*:* | 4.0.3 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.0.4:*:*:*:*:*:*:* | 4.0.4 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.0.5:*:*:*:*:*:*:* | 4.0.5 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.0.6:*:*:*:*:*:*:* | 4.0.6 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.0.7:*:*:*:*:*:*:* | 4.0.7 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.0:*:*:*:*:*:*:* | 4.1.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.1:*:*:*:*:*:*:* | 4.1.1 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.2:*:*:*:*:*:*:* | 4.1.2 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.3:*:*:*:*:*:*:* | 4.1.3 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.4:*:*:*:*:*:*:* | 4.1.4 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.5:*:*:*:*:*:*:* | 4.1.5 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.6:*:*:*:*:*:*:* | 4.1.6 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.7:*:*:*:*:*:*:* | 4.1.7 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.8:*:*:*:*:*:*:* | 4.1.8 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.9:*:*:*:*:*:*:* | 4.1.9 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.10:*:*:*:*:*:*:* | 4.1.10 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.1.11:*:*:*:*:*:*:* | 4.1.11 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.2.0:*:*:*:*:*:*:* | 4.2.0 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.2.1:*:*:*:*:*:*:* | 4.2.1 | Vulnerable | strongSwan |
| cpe:2.3:a:strongswan:strongswan:4.2.10:*:*:*:*:*:*:* | 4.2.10 | Vulnerable | strongSwan |
- cpe:2.3:a:strongswan:strongswan:2.2.0:*:*:*:*:*:*:* Versions 2.2.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.2.1:*:*:*:*:*:*:* Versions 2.2.1 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.2.2:*:*:*:*:*:*:* Versions 2.2.2 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.3.0:*:*:*:*:*:*:* Versions 2.3.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.3.1:*:*:*:*:*:*:* Versions 2.3.1 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.3.2:*:*:*:*:*:*:* Versions 2.3.2 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.4.0:*:*:*:*:*:*:* Versions 2.4.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.4.0a:*:*:*:*:*:*:* Versions 2.4.0a Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.4.1:*:*:*:*:*:*:* Versions 2.4.1 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.4.2:*:*:*:*:*:*:* Versions 2.4.2 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.4.3:*:*:*:*:*:*:* Versions 2.4.3 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.4.4:*:*:*:*:*:*:* Versions 2.4.4 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.5.0:*:*:*:*:*:*:* Versions 2.5.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.5.1:*:*:*:*:*:*:* Versions 2.5.1 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.5.2:*:*:*:*:*:*:* Versions 2.5.2 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.5.3:*:*:*:*:*:*:* Versions 2.5.3 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.5.4:*:*:*:*:*:*:* Versions 2.5.4 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.5.5:*:*:*:*:*:*:* Versions 2.5.5 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.5.6:*:*:*:*:*:*:* Versions 2.5.6 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.5.7:*:*:*:*:*:*:* Versions 2.5.7 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.6.0:*:*:*:*:*:*:* Versions 2.6.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.6.1:*:*:*:*:*:*:* Versions 2.6.1 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.6.2:*:*:*:*:*:*:* Versions 2.6.2 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.6.3:*:*:*:*:*:*:* Versions 2.6.3 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.6.4:*:*:*:*:*:*:* Versions 2.6.4 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.6.16:*:*:*:*:*:*:* Versions 2.6.16 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.6.20:*:*:*:*:*:*:* Versions 2.6.20 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.7.0:*:*:*:*:*:*:* Versions 2.7.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.8.0:*:*:*:*:*:*:* Versions 2.8.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.8.1:*:*:*:*:*:*:* Versions 2.8.1 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.8.2:*:*:*:*:*:*:* Versions 2.8.2 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.8.3:*:*:*:*:*:*:* Versions 2.8.3 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.8.4:*:*:*:*:*:*:* Versions 2.8.4 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.8.5:*:*:*:*:*:*:* Versions 2.8.5 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.8.6:*:*:*:*:*:*:* Versions 2.8.6 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.8.7:*:*:*:*:*:*:* Versions 2.8.7 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:2.8.8:*:*:*:*:*:*:* Versions 2.8.8 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.0.0:*:*:*:*:*:*:* Versions 4.0.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.0.2:*:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.0.3:*:*:*:*:*:*:* Versions 4.0.3 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.0.4:*:*:*:*:*:*:* Versions 4.0.4 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.0.5:*:*:*:*:*:*:* Versions 4.0.5 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.0.6:*:*:*:*:*:*:* Versions 4.0.6 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.0.7:*:*:*:*:*:*:* Versions 4.0.7 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.1:*:*:*:*:*:*:* Versions 4.1.1 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.2:*:*:*:*:*:*:* Versions 4.1.2 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.3:*:*:*:*:*:*:* Versions 4.1.3 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.4:*:*:*:*:*:*:* Versions 4.1.4 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.5:*:*:*:*:*:*:* Versions 4.1.5 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.6:*:*:*:*:*:*:* Versions 4.1.6 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.7:*:*:*:*:*:*:* Versions 4.1.7 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.8:*:*:*:*:*:*:* Versions 4.1.8 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.9:*:*:*:*:*:*:* Versions 4.1.9 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.10:*:*:*:*:*:*:* Versions 4.1.10 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.1.11:*:*:*:*:*:*:* Versions 4.1.11 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.2.0:*:*:*:*:*:*:* Versions 4.2.0 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.2.1:*:*:*:*:*:*:* Versions 4.2.1 Vulnerable ·strongSwan
- cpe:2.3:a:strongswan:strongswan:4.2.10:*:*:*:*:*:*:* Versions 4.2.10 Vulnerable ·strongSwan
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2009-1957
- 2026-10-03 Alias added: GHSA-j58f-q3cq-42r5
References
Patch 2
Advisory 3
More Strongswan vulnerabilities
- TI-2023-22300 strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code… CVSS 3.1CRITICAL 9.8
- TI-2015-03374 strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon… CVSS 3.0CRITICAL 9.8
- TI-2004-00531 FreeS/WAN 1.x and 2.x, and other related products including superfreeswan 1.x, openswan… CVSS 2.0HIGH 10.0
- TI-2023-11610 strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a… CVSS 3.1CRITICAL 9.8
- TI-2021-20414 In strongSwan before 5.9.5, a malicious responder can send an EAP-Success message too… CVSS 3.1CRITICAL 9.1
- TI-2017-08240 The gmp plugin in strongSwan before 5.6.0 allows remote attackers to cause a denial of… CVSS 3.1HIGH 7.5
Sources
- CVE-2009-1957 · CVE Program
- CVE-2009-1957 · NVD
- FIRST EPSS
- GHSA-j58f-q3cq-42r5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences