CVE-2009-5009: n/a vulnerability

CVE-2009-5009: Double free vulnerability in OpenConnect before 1.40 might allow remote AnyConnect SSL VPN servers to cause...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 17, 2024, 02:42 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2009-5009 affects old OpenConnect clients before version 1.40. A malicious or compromised AnyConnect SSL VPN server could trigger a memory-handling flaw during reconnect, causing the VPN client to crash. The public record also says other impact may be possible, but does not substantiate details. Exposure is most likely on endpoints or systems still running OpenConnect before 1.40, especially where users connect to untrusted, third-party, or potentially compromised AnyConnect-compatible VPN servers. Prioritize remediation where legacy OpenConnect clients are used for business VPN access or connect to external VPN services. Business impact is mainly loss of VPN availability; broader compromise is not evidenced by the provided sources. Mitigation focus: Upgrade OpenConnect clients to version 1.40 or later where applicable.; Check distribution or vendor package guidance for backported fixes.; Avoid using outdated clients with untrusted or unmanaged VPN servers..

Prepared: Jun 28, 2026, 01:40 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 12, 2010, 21:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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