No exploitation reportedFix available

CVE-2010-2243

Q: Is CVE-2010-2243 actively exploited?

Active exploitation of CVE-2010-2243 has not been confirmed. Its EPSS score was 2.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2010-2243?

CVE-2010-2243 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2019-11-07
Fixed in2.6.33
WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2019-11-0717:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2010-2243?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2010-2243?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Linux linux kernel

Branch	Affected	Fixed in	Source
2.6	< 2.6.33	2.6.33	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Linux linux kernel to 2.6.33

Advisories and patches

git.kernel.orgPatch · Vendor Advisory
www.openwall.comPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.07.8read 2026-10-23
NVDweakness (CWE)CWE-20read 2026-10-23
FIRST EPSSEPSS score2.5 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2019-11-07
Last Modified: 2026-06-16
NVD status: Modified

Frequently asked questions

What is CVE-2010-2243?

Is CVE-2010-2243 actively exploited?

Active exploitation of CVE-2010-2243 has not been confirmed. Its EPSS score was 2.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2010-2243?

CVE-2010-2243 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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