cvedb.io
CVE-2021-3715
HIGH · CVSS 7.8
EPSS exploitation probability: 0%
Published 2022-03-02T23:15:08.957 · Last modified 2026-06-17T04:05:37.617

Summary

A flaw was found in the "Routing decision" classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changing of classification filters, leading to a use-after-free condition. This flaw allows unprivileged local users to escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Affected products

linux — linux_kernel

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.