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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