CVE-2021-33889

MEDIUM 6.8CVE-2021-33889 · Published 02/07/2021 · updated 17/06/2026

In short

CVE-2021-33889 is a MEDIUM (CVSS 6.8) vulnerability affecting wpantund (openthread).
Chance of exploitation in the next 30 days (EPSS): 0.33%, higher than 25.9% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
wpantund openthread	`≤ 2021-07-02`	No fix yet

OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an inconsistency in the integer data type for metric_len.

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