CVE-2016-8863: Debian Linux

Critical severity, CVSS 9.8. EPSS: 8.5% chance of exploitation in the next 30 days.

Heap-based buffer overflow in the create_url_list function in gena/gena_device.c in Portable UPnP SDK (aka libupnp) before 1.6.21 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a valid URI followed by an invalid one in the CALLBACK header of an SUBSCRIBE request.

Affected products

• Debian Debian Linux: version 8.0 only
• Libupnp Project Libupnp: up to and including 1.6.20

Published 2017-03-07. Last modified 2026-06-17.