Is CVE-2016-8863 actively exploited?

CVE-2016-8863 has no public evidence of in-the-wild exploitation as of 2025-04-20.

What is the CVSS score for CVE-2016-8863?

CVE-2016-8863 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2016-8863?

Patch guidance is available from libupnp project security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2016-8863.

Fix CVE-2016-8863 - CRITICAL libupnp project libupnp

Q: Which products are affected by CVE-2016-8863?

2 products: libupnp project libupnp, debian debian linux.

Description

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.

CVSS Metrics

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-119 · Memory Buffer Errors

Metadata

Primary Vendor: LIBUPNP_PROJECT
Published: 3/7/2017
Last Modified: 4/20/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2016-8863

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary