CVE-2018-7185
The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (9.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 9.00% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- ntp/ntp · synology/router manager · synology/skynas · synology/virtual diskstation manager · synology/diskstation manager · synology/vs960hd firmware · canonical/ubuntu linux · netapp/hci · netapp/solidfire · hpe/hpux-ntp · oracle/fujitsu m10-1 firmware · oracle/fujitsu m10-4 firmware · oracle/fujitsu m10-4s firmware · oracle/fujitsu m12-1 firmware · oracle/fujitsu m12-2 firmware · oracle/fujitsu m12-2s firmware
- Source
- cve@mitre.org
EPSS 9.0% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.htmlThird Party Advisory, VDB Entry
- http://support.ntp.org/bin/view/Main/NtpBug3454Mitigation, Vendor Advisory
- http://www.securityfocus.com/archive/1/541824/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/103339Third Party Advisory, VDB Entry
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.ascThird Party Advisory
- https://security.gentoo.org/glsa/201805-12Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180626-0001/Third Party Advisory
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_usThird Party Advisory
- https://usn.ubuntu.com/3707-1/Third Party Advisory
- https://usn.ubuntu.com/3707-2/Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlThird Party Advisory
- https://www.synology.com/support/security/Synology_SA_18_13Third Party Advisory
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.htmlThird Party Advisory, VDB Entry
- http://support.ntp.org/bin/view/Main/NtpBug3454Mitigation, Vendor Advisory
- http://www.securityfocus.com/archive/1/541824/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/103339Third Party Advisory, VDB Entry
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.ascThird Party Advisory
- https://security.gentoo.org/glsa/201805-12Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180626-0001/Third Party Advisory
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_usThird Party Advisory
- https://usn.ubuntu.com/3707-1/Third Party Advisory
- https://usn.ubuntu.com/3707-2/Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlThird Party Advisory
- https://www.synology.com/support/security/Synology_SA_18_13Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.