CVE-2015-8140

Name: CVE-2015-8140
Creator: NVD / NIST
Published: 2017-01-30T21:59:00.91+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.64%

Last modified Jun 17, 2026

CVE-2015-8140 is a vulnerability of currently unknown severity. The ntpq protocol in NTP before 4.2.8p7 allows remote attackers to conduct replay attacks by sniffing the network.. EPSS estimates a 4.64% chance of exploitation in the next 30 days.

Description

The ntpq protocol in NTP before 4.2.8p7 allows remote attackers to conduct replay attacks by sniffing the network.

Metrics

EPSS Probability

4.64%

90.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions	Update
Ntp	Ntp	<= 4.2.8	P6

References

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.htmlThird Party Advisory
http://support.ntp.org/bin/view/Main/NtpBug2947Vendor Advisory
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpdThird Party Advisory
http://www.securitytracker.com/id/1034782Third Party Advisory, VDB Entry
https://bto.bluecoat.com/security-advisory/sa113Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc
https://security.gentoo.org/glsa/201607-15Third Party Advisory
https://security.netapp.com/advisory/ntap-20200204-0003/
https://www.kb.cert.org/vuls/id/718152Third Party Advisory, US Government Resource
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.htmlThird Party Advisory
http://support.ntp.org/bin/view/Main/NtpBug2947Vendor Advisory
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpdThird Party Advisory
http://www.securitytracker.com/id/1034782Third Party Advisory, VDB Entry
https://bto.bluecoat.com/security-advisory/sa113Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc
https://security.gentoo.org/glsa/201607-15Third Party Advisory
https://security.netapp.com/advisory/ntap-20200204-0003/
https://www.kb.cert.org/vuls/id/718152Third Party Advisory, US Government Resource

Timeline

Published: Jan 30, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8140?

The ntpq protocol in NTP before 4.2.8p7 allows remote attackers to conduct replay attacks by sniffing the network.

How severe is CVE-2015-8140?

Severity scoring for CVE-2015-8140 is pending analysis. The EPSS model estimates a 4.64% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8140?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8140?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST