cve.bz

CVE-2021-33909

7.8 highEPSS 9.7%

High (7.8). EPSS 9.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.8 high
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
9.7% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)
CWEs
CWE-190, CWE-787
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON