CVE-2017-11721: IOQUAKE3

Critical severity, CVSS 9.8. EPSS: 2.5% chance of exploitation in the next 30 days.

Buffer overflow in ioquake3 before 2017-08-02 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted packet.

Affected products

• IOQUAKE3 IOQUAKE3: up to and including 2017-07-31

Published 2017-08-03. Last modified 2026-06-17.