CVE-2016-8863 Memory corruption in n/a

What is CVE-2016-8863?

CVE-2016-8863 is a critical memory corruption vulnerability in Debian Debian Linux, published on 7 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-119

Which versions are affected by CVE-2016-8863?

It affects 2 products.

Products include Debian Debian Linux, Libupnp Project Libupnp.

How do I fix CVE-2016-8863?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2016-8863 being exploited?

There is no known exploitation of CVE-2016-8863 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Other vulnerabilities in Debian Debian Linux

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• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DLA-747-1, DLA-748-1, GHSA-4cjm-5fqc-2f6p, MGASA-2017-0002, UBUNTU-CVE-2016-8863.