cvedb.io
CVE-2021-33909
HIGH · CVSS 7.8
EPSS exploitation probability: 0%
Published 2021-07-20T19:15:09.747 · Last modified 2026-06-17T03:55:21.607

Summary

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

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.