CVE-2012-3291: Infradead Openconnect

High severity, CVSS 7.8. EPSS: 2.3% chance of exploitation in the next 30 days.

Heap-based buffer overflow in OpenConnect 3.18 allows remote servers to cause a denial of service via a crafted greeting banner.

Affected products

• Infradead Openconnect: up to and including 3.17; version 1.00 only; version 1.10 only; version 1.20 only; version 1.30 only; version 1.40 only; …

Published 2012-06-07. Last modified 2026-06-16.