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CVE-2015-7853

9.8 criticalEPSS 12%

Critical (9.8). EPSS 12% chance of exploitation in the next 30 days.

The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative input value.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
12% chance of exploitation in the next 30 days; higher than 96% of CVEs (scores of 2026-10-31)
CWE
CWE-120
Published
Modified
Record from
the NVD, synced

Affected

References

Check your stackJSON