CVE-2018-7185
Synology
- Published
- 6 March 2018
- Last modified
- 17 June 2026
- CVSS
- 7.5 v3.1
- Severity
- high
- EPSS
- 9.0% (95th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- None assigned
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 9.0% probability of exploitation activity in the next 30 days, placing it in the top decile of all scored CVEs.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| VS960HD | Synology | unknown | < 2.2.3-1505, < 2.3.6-1720 |
References
Vendor advisory and patch
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html third-party
- http://www.securityfocus.com/archive/1/541824/100/0/threaded third-party
- http://www.securityfocus.com/bid/103339 third-party
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc third-party
- https://security.gentoo.org/glsa/201805-12 third-party
- https://security.netapp.com/advisory/ntap-20180626-0001/ third-party
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us third-party
- https://usn.ubuntu.com/3707-1/ third-party
- https://usn.ubuntu.com/3707-2/ third-party
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html third-party
- https://www.synology.com/support/security/Synology_SA_18_13 third-party
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html third-party
- http://www.securityfocus.com/archive/1/541824/100/0/threaded third-party
- http://www.securityfocus.com/bid/103339 third-party
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc third-party
- https://security.gentoo.org/glsa/201805-12 third-party
- https://security.netapp.com/advisory/ntap-20180626-0001/ third-party
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us third-party
- https://usn.ubuntu.com/3707-1/ third-party
- https://usn.ubuntu.com/3707-2/ third-party
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html third-party
- https://www.synology.com/support/security/Synology_SA_18_13 third-party
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.