Is CVE-2016-6301 in the CISA KEV catalog?

No. CVE-2016-6301 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-6301?

CVE-2016-6301 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2016-6301?

CVE-2016-6301 has an EPSS score of 8.89% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-6301?

Upgrade busybox on debian 11 to 1:1.27.2-1 or later.

CVE & CISA-KEV Catalog

CVE-2016-6301

HIGHEPSS 95th pctl

7.5

CVSS v3

NVD

Description

The recv_and_process_client_pkt function in networking/ntpd.c in busybox allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged NTP packet, which triggers a communication loop.

CWE-399Resource Management Errors CWE-835

How to fix

Remediation Available

busyboxDebian

Fixed in:1:1.27.2-1CVE-2016-6301

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

8.89%probability of exploitation in 30 days

95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

Patch1

git.busybox.net

Third-Party Advisory4

Other references8

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.