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CRITICAL

CVE-2015-4042

CVSS v3

9.8

CRITICAL

EPSS Score

2.3 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Integer overflow in the keycompare_mb function in sort.c in sort in GNU Coreutils through 8.23 might allow attackers to cause a denial of service (application crash) or possibly have unspecified other impact via long strings.

Technical details

Published
2020-01-24

Frequently asked questions

What is CVE-2015-4042?

Integer overflow in the keycompare_mb function in sort.c in sort in GNU Coreutils through 8.23 might allow attackers to cause a denial of service (application crash) or possibly have unspecified other impact via long strings.

Is CVE-2015-4042 actively exploited?

Active exploitation of CVE-2015-4042 has not been confirmed. Its EPSS score was 2.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2015-4042?

CVE-2015-4042 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2015-4042 affecting your environment?

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