The ASN.1 parser (pluto/asn1.c, libstrongswan/asn1/asn1.c, libstrongswan/asn1/asn1_parser.c) in (a) strongSwan 2.8 before 2.8.10, 4.2 before 4.2.16, and 4.3 before 4.3.2; and (b) openSwan 2.6 before 2.6.22 and 2.4 before 2.4.15 allows remote attackers to cause a denial of service (pluto IKE daemon crash) via an X.509 certificate with (1) crafted Relative Distinguished Names (RDNs), (2) a crafted UTCTIME string, or (3) a crafted GENERALIZEDTIME string.
Conclusion & alert: CVE-2009-2185 is rated Moderate Risk (44.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.71%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 8.23% | 2.71% | -5.52% |
| 2 | 2025-12-01 | 6.30% | 8.23% | +1.93% |
| 3 | 2025-03-30 | — | 6.30% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2009-2185 not yet assigned priority: Debian including 1 source packages (strongswan), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2009-2185 |
gentoo
|
normal | CVE-2009-2185: 1 GLSA(s) (200909-05), 1 atom(s) (net-misc/openswan); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-2185 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2009-2185 |
ubuntu
|
medium | CVE-2009-2185 medium priority: Ubuntu including 2 source packages (openswan, strongswan), 20 status rows across 10 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): not-affected 9, ignored 5, released 4, DNE 1, needs-triage 1. | https://ubuntu.com/security/CVE-2009-2185 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| strongswan | strongswan | 2.8.0 | cpe:2.3:a:strongswan:strongswan:2.8.0:*:*:*:*:*:*:* |
| strongswan | strongswan | 2.8.1 | cpe:2.3:a:strongswan:strongswan:2.8.1:*:*:*:*:*:*:* |
| strongswan | strongswan | 2.8.2 | cpe:2.3:a:strongswan:strongswan:2.8.2:*:*:*:*:*:*:* |
| strongswan | strongswan | 2.8.3 | cpe:2.3:a:strongswan:strongswan:2.8.3:*:*:*:*:*:*:* |
| strongswan | strongswan | 2.8.4 | cpe:2.3:a:strongswan:strongswan:2.8.4:*:*:*:*:*:*:* |
| strongswan | strongswan | 2.8.5 | cpe:2.3:a:strongswan:strongswan:2.8.5:*:*:*:*:*:*:* |
| strongswan | strongswan | 2.8.6 | cpe:2.3:a:strongswan:strongswan:2.8.6:*:*:*:*:*:*:* |
| strongswan | strongswan | 2.8.7 | cpe:2.3:a:strongswan:strongswan:2.8.7:*:*:*:*:*:*:* |
| strongswan | strongswan | 2.8.8 | cpe:2.3:a:strongswan:strongswan:2.8.8:*:*:*:*:*:*:* |
| strongswan | strongswan | 2.8.9 | cpe:2.3:a:strongswan:strongswan:2.8.9:*:*:*:*:*:*:* |
| strongswan | strongswan | 2.8.10 | cpe:2.3:a:strongswan:strongswan:2.8.10:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.1 | cpe:2.3:a:strongswan:strongswan:4.1:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.0 | cpe:2.3:a:strongswan:strongswan:4.2.0:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.1 | cpe:2.3:a:strongswan:strongswan:4.2.1:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.2 | cpe:2.3:a:strongswan:strongswan:4.2.2:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.3 | cpe:2.3:a:strongswan:strongswan:4.2.3:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.4 | cpe:2.3:a:strongswan:strongswan:4.2.4:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.5 | cpe:2.3:a:strongswan:strongswan:4.2.5:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.6 | cpe:2.3:a:strongswan:strongswan:4.2.6:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.7 | cpe:2.3:a:strongswan:strongswan:4.2.7:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.8 | cpe:2.3:a:strongswan:strongswan:4.2.8:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.9 | cpe:2.3:a:strongswan:strongswan:4.2.9:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.10 | cpe:2.3:a:strongswan:strongswan:4.2.10:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.11 | cpe:2.3:a:strongswan:strongswan:4.2.11:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.12 | cpe:2.3:a:strongswan:strongswan:4.2.12:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.13 | cpe:2.3:a:strongswan:strongswan:4.2.13:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.14 | cpe:2.3:a:strongswan:strongswan:4.2.14:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.2.15 | cpe:2.3:a:strongswan:strongswan:4.2.15:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.3.0 | cpe:2.3:a:strongswan:strongswan:4.3.0:*:*:*:*:*:*:* |
| strongswan | strongswan | 4.3.1 | cpe:2.3:a:strongswan:strongswan:4.3.1:*:*:*:*:*:*:* |
| 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 | 2.4.9 | 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 | 2.6.03 | 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:*:*:*:*:*:*:* |