CVE-2015-8139: ntp Improper Access Control
CVSS: 5.3v3.0MediumModified
AliasesUBUNTU-CVE-2015-8139DEBIAN-CVE-2015-8139
Published 30-01-2017Last modified 06-08-2024
Vulnerability summary
CVE-2015-8139 is a medium (CVSS 5.3) Improper Access Control vulnerability in ntp. EPSS estimates a 5.93% chance of exploitation in the next 30 days, higher than 93.1% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.0 (NVD)EPSS score
5.93%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 7 · Related 6Timeline
- 30-01-2017PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
ntpq in NTP before 4.2.8p7 allows remote attackers to obtain origin timestamps and then impersonate peers via unspecified vectors.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.3Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
5.93%
Chance of exploitation in the next 30 days
Percentile
93%
Versus all other CVEs
30-day change
0.00 pp
From 5.93% on 18-09-2026
18-09-202618-10-2026
EPSS score5.93%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- ntp< 1:4.2.8p7+dfsg-1
Ntp1 product
- ntp≤ 4.2.8
Ubuntu1 product
- ntpAll versions (No fix recorded)
3 vendors · 3 products
References
23 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpdVendor AdvisoryX Refsource CISCOThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
Show all 23 references
- lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.opensuse.org/opensuse-updates/2016-05/msg00114.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- security.netapp.com/advisory/ntap-20200204-0003/X Refsource CONFIRM
