CVE-2016-8863
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.56% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- libupnp project/libupnp · debian/debian linux
- Source
- cve@mitre.org
EPSS moved from 7.4% on 21 September 2026 to 8.6% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.securityfocus.com/bid/92849
- https://security.gentoo.org/glsa/201701-52
- https://sourceforge.net/p/pupnp/bugs/133/Issue Tracking, Third Party Advisory
- https://sourceforge.net/p/pupnp/code/ci/master/tree/ChangeLogRelease Notes, Third Party Advisory
- https://www.debian.org/security/2016/dsa-3736Third Party Advisory
- https://www.tenable.com/security/research/tra-2017-10
- http://www.securityfocus.com/bid/92849
- https://security.gentoo.org/glsa/201701-52
- https://sourceforge.net/p/pupnp/bugs/133/Issue Tracking, Third Party Advisory
- https://sourceforge.net/p/pupnp/code/ci/master/tree/ChangeLogRelease Notes, Third Party Advisory
- https://www.debian.org/security/2016/dsa-3736Third Party Advisory
- https://www.tenable.com/security/research/tra-2017-10
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.