CVE-2015-3991
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or...
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary code.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary code.
- Record
CVE-2015-3991- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-19
- Updated
- 2026-11-02
CVE List No score
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary code.
- Record
CVE-2015-3991- Updated
- 2026-11-02
EUVDEUVD-2015-4021 No score
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary code.
- Record
EUVD-2015-4021- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-23jq-mpmp-prmf
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or...
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary code.
- Record
GHSA-23jq-mpmp-prmf- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSV
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary code.
- Record
CVE-2015-3991- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2015-3991
strongSwan 5.2.2 and 5.3.0 allows remote attackers to cause a denial of service (daemon crash) or execute arbitrary code.
- Record
DEBIAN-CVE-2015-3991- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10579-1 No score
strongswan-5.3.5-1.1 on GA media
These are all security issues fixed in the strongswan-5.3.5-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10579-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
strongswanDebian:12 |
before 5.3.0-2 | 5.3.0-2 |
strongswanDebian:13 |
before 5.3.0-2 | 5.3.0-2 |
strongswanDebian:14 |
before 5.3.0-2 | 5.3.0-2 |
strongswanopenSUSE:Tumbleweed From an advisory covering 11 CVEs |
before 5.3.5-1.1 | 5.3.5-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-3991 is a critical vulnerability (CVSS 9.8) in Strongswan, published September 7, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.56%, the 91st percentile. Fixed in strongswan 5.3.0-2.
References
lists.fedoraproject.org/pipermail/package-announce/2015-August/164276.html
strongswan.org/blog/2015/06/01/strongswan-vulnerability-%28cve-2015-3991%29.html
bugzilla.redhat.com/show_bug.cgi?id=1222815
securityfocus.com/bid/76861
nvd.nist.gov/vuln/detail/CVE-2015-3991
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github.com/advisories/GHSA-23jq-mpmp-prmf
security-tracker.debian.org/tracker/CVE-2015-3991
suse.com/security/cve/CVE-2009-0790