What is CVE-2010-2243?

CVE-2010-2243 is a high-severity vulnerability in Linux Kernel, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-11-07.

How severe is CVE-2010-2243?

High severity. CVSS v3 base score is 7.5 out of 10.

Improper input validation in Linux Kernel

CVE-2010-2243

A vulnerability exists in kernel/time/clocksource.c in the Linux kernel before 2.6.34 where on non-GENERIC_TIME systems (GENERIC_TIME=n), accessing /sys/devices/system/clocksource/clocksource0/current_clocksource results in an OOPS.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2019-11-07 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.025 (84.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000

Affected products

Linux Kernel
Linux-2.6 — versions before 2.6.33

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security-tracker.debian.org/tracker/CVE-2010-2243 (Third Party Advisory)
access.redhat.com/security/cve/cve-2010-2243 (Third Party Advisory)
www.openwall.com/lists/oss-security/2010/06/25/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2010-2243?: CVE-2010-2243 is a high-severity vulnerability in Linux Kernel, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-11-07.
How severe is CVE-2010-2243?: High severity. CVSS v3 base score is 7.5 out of 10.