CVE-2015-7973

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

3.36% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 87.7% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2017-01-30 21:00Z9 YR AGO

Last updated

2024-08-06 08:06Z2 YR AGO

Reserved

2015-10-23

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-254
• CWE-294Authentication Bypass by Capture-replayBase

Data version

5.1

Document digest

61a31b9c36f722b5253915471227faa83a50f6a43bf983951d769e1b0335c4f1

• tools.cisco.com20160120 Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products - January 2016http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpdvendor-advisoryx_refsource_CISCO
• www.ubuntu.comUSN-3096-1http://www.ubuntu.com/usn/USN-3096-1vendor-advisoryx_refsource_UBUNTU
• lists.opensuse.orgSUSE-SU-2016:1177http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.htmlvendor-advisoryx_refsource_SUSE
• h20566.www2.hpe.comhttps://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03766en_usx_refsource_CONFIRM
• lists.opensuse.orgSUSE-SU-2016:1912http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.htmlvendor-advisoryx_refsource_SUSE
• support.ntp.orghttp://support.ntp.org/bin/view/Main/NtpBug2935x_refsource_CONFIRM
• www.securitytracker.com1034782http://www.securitytracker.com/id/1034782vdb-entryx_refsource_SECTRACK
• lists.opensuse.orgopenSUSE-SU-2016:1292http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.htmlvendor-advisoryx_refsource_SUSE
• www.kb.cert.orgVU#718152https://www.kb.cert.org/vuls/id/718152third-party-advisoryx_refsource_CERT-VN
• lists.opensuse.orgSUSE-SU-2016:1247http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.htmlvendor-advisoryx_refsource_SUSE
• h20566.www2.hpe.comhttps://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03750en_usx_refsource_CONFIRM
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20171031-0001/x_refsource_CONFIRM
• lists.opensuse.orgSUSE-SU-2016:1311http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.htmlvendor-advisoryx_refsource_SUSE
• www.securityfocus.com81963http://www.securityfocus.com/bid/81963vdb-entryx_refsource_BID
• lists.opensuse.orgSUSE-SU-2016:2094http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgSUSE-SU-2016:1175http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.htmlvendor-advisoryx_refsource_SUSE
• security.freebsd.orgFreeBSD-SA-16:09https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.ascvendor-advisoryx_refsource_FREEBSD
• bto.bluecoat.comhttps://bto.bluecoat.com/security-advisory/sa113x_refsource_CONFIRM
• lists.opensuse.orgopenSUSE-SU-2016:1423http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.htmlvendor-advisoryx_refsource_SUSE
• security.gentoo.orgGLSA-201607-15https://security.gentoo.org/glsa/201607-15vendor-advisoryx_refsource_GENTOO
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdfx_refsource_CONFIRM
• us-cert.cisa.govhttps://us-cert.cisa.gov/ics/advisories/icsa-21-103-11x_refsource_CONFIRM