Is CVE-2018-7170 in the CISA KEV catalog?

No. CVE-2018-7170 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-7170?

CVE-2018-7170 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2018-7170?

CVE-2018-7170 has an EPSS score of 2.76% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-7170?

Upgrade ntp on debian 11 to 1:4.2.8p11+dfsg-1 or later.

CVE & CISA-KEV Catalog

CVE-2018-7170

MEDIUMEPSS 84th pctl

5.3

CVSS v3

NVD

Description

ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.

How to fix

Remediation Available

ntpDebian

Fixed in:1:4.2.8p11+dfsg-1CVE-2018-7170

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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

2.76%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Third-Party Advisory10

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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 2025-01-14.