CVE-2009-5009

Double free vulnerability in OpenConnect before 1.40 might allow remote AnyConnect SSL VPN servers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted DTLS Cipher option during a reconnect operation.

Published: 2010-10-14 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-5009 is rated Moderate Risk (40.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.98%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-5009

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 0.30% 0.98% +0.67%
2 2025-03-30 0.36% 0.30% -0.06%
3 2025-03-29 — 0.36% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-5009

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2009-5009

OS Trackers for CVE-2009-5009

vendor priority summary link
debian not yet assigned CVE-2009-5009 not yet assigned priority: Debian including 1 source packages (openconnect), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-5009
ubuntu medium CVE-2009-5009 medium priority: Ubuntu including 1 source packages (openconnect), 7 status rows across 7 suites (dapper, hardy, jaunty, karmic, lucid, maverick, upstream): DNE 3, not-affected 3, released 1. https://ubuntu.com/security/CVE-2009-5009

Affected software / configurations for CVE-2009-5009

Vendor Product Version Raw CPE
infradead openconnect <= 1.30 cpe:2.3:a:infradead:openconnect:*:*:*:*:*:*:*:*
infradead openconnect 1.00 cpe:2.3:a:infradead:openconnect:1.00:*:*:*:*:*:*:*
infradead openconnect 1.10 cpe:2.3:a:infradead:openconnect:1.10:*:*:*:*:*:*:*
infradead openconnect 1.20 cpe:2.3:a:infradead:openconnect:1.20:*:*:*:*:*:*:*

References for CVE-2009-5009

cvelogic Threat Intelligence