Is CVE-2016-9042 in the CISA KEV catalog?

No. CVE-2016-9042 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-9042?

CVE-2016-9042 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2016-9042?

CVE-2016-9042 has an EPSS score of 3.96% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-9042?

Upgrade ntp on debian 11 to 1:4.2.8p10+dfsg-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2016-9042

MEDIUMEPSS 89th pctl

5.9

CVSS v3

NVD

Description

An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.8p9. A specially crafted unauthenticated network packet can be used to reset the expected origin timestamp for target peers. Legitimate replies from targeted peers will fail the origin timestamp check (TEST2) causing the reply to be dropped and creating a denial of service condition.

CWE-20Improper Input Validation

How to fix

Remediation Available

ntpDebian

Fixed in:1:4.2.8p10+dfsg-1CVE-2016-9042

ntpUbuntu

Fixed in:1:4.2.6.p5+dfsg-3ubuntu2.14.04.11USN-3349-1

Fixed in:1:4.2.8p4+dfsg-3ubuntu5.5USN-3349-1

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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

3.96%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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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 2024-11-21.