Is CVE-2016-7429 in the CISA KEV catalog?

No. CVE-2016-7429 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2016-7429?

CVE-2016-7429 has a CVSS v3 base score of 3.7 (LOW).

What is the EPSS score for CVE-2016-7429?

CVE-2016-7429 has an EPSS score of 7.36% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2016-7429?

Upgrade ntp on debian 11 to 1:4.2.8p9+dfsg-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2016-7429

LOWEPSS 94th pctl

3.7

CVSS v3

NVD

Description

NTP before 4.2.8p9 changes the peer structure to the interface it receives the response from a source, which allows remote attackers to cause a denial of service (prevent communication with a source) by sending a response for a source to an interface the source does not use.

CWE-18

How to fix

Remediation Available

ntpDebian

Fixed in:1:4.2.8p9+dfsg-1CVE-2016-7429

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

AvailabilityLow

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

7.36%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Vendor Advisory3

Third-Party Advisory1

kb.cert.org

Other references6

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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 2026-05-13.