What is CVE-2020-8916?

CVE-2020-8916 is a medium-severity vulnerability in Google Llc Wpantund, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.0/10. Published 2020-07-07.

How severe is CVE-2020-8916?

Medium severity. CVSS v3 base score is 5.0 out of 10.

Vulnerability in Google Llc Wpantund

CVE-2020-8916

A memory leak in Openthread's wpantund versions up to commit 0e5d1601febb869f583e944785e5685c6c747be7, when used in an environment where wpanctl is directly interfacing with the control driver (eg: debug environments) can allow an attacker to crash the service (DoS). We recommend updating, or to restrict access in your debug environments.

Published 2020-07-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (17.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Google Llc Wpantund — versions stable
Openthread Wpantund

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

github.com/openthread/wpantund/pull/468/commits/0e5d1601febb869f583e944785e5685… (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-8916?: CVE-2020-8916 is a medium-severity vulnerability in Google Llc Wpantund, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.0/10. Published 2020-07-07.
How severe is CVE-2020-8916?: Medium severity. CVSS v3 base score is 5.0 out of 10.