CVE-2015-7976
CVE-2015-7976 is a medium-severity vulnerability in Ntp with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-254.
Key facts
- Severity: Medium (CVSS 3.x base score 4.3)
- CVSS v2: 4.0
- EPSS exploit prediction: 3% (88th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-254
- Affected product: Ntp
- Published:
- Last modified:
Description
The ntpq saveconfig command in NTP 4.1.2, 4.2.x before 4.2.8p6, 4.3, 4.3.25, 4.3.70, and 4.3.77 does not properly filter special characters, which allows attackers to cause unspecified impact via a crafted filename.
Frequently asked questions
- What is CVE-2015-7976?
- The ntpq saveconfig command in NTP 4.1.2, 4.2.x before 4.2.8p6, 4.3, 4.3.25, 4.3.70, and 4.3.77 does not properly filter special characters, which allows attackers to cause unspecified impact via a crafted filename.
- How severe is CVE-2015-7976?
- CVE-2015-7976 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2015-7976 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2015-7976?
- CVE-2015-7976 primarily affects Ntp. In total, 108 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2015-7976?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2015-7976 published?
- CVE-2015-7976 was published on 2017-01-30 and last updated on 2026-06-17.
References
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
- http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
- http://support.ntp.org/bin/view/Main/NtpBug2938
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd
- http://www.securitytracker.com/id/1034782
- http://www.ubuntu.com/usn/USN-3096-1
- https://bto.bluecoat.com/security-advisory/sa113
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc
- https://security.gentoo.org/glsa/201607-15
- https://security.netapp.com/advisory/ntap-20171031-0001/
- https://www.kb.cert.org/vuls/id/718152
Affected products (108)
- cpe:2.3:a:ntp:ntp:4.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:*:p5:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.6:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.7:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.8:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.9:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.10:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.11:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.12:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.13:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.14:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.15:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.16:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.17:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.18:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.19:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.20:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.21:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.22:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.23:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.24:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.25:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.26:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.27:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.28:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.29:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.30:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.31:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.32:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.33:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.34:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.35:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.36:*:*:*:*:*:*:*
- cpe:2.3:a:ntp:ntp:4.3.37:*:*:*:*:*:*:*
More vulnerabilities in Ntp
- CVE-2018-12327 — Critical (CVSS 9.8): Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker to achieve code execution or…
- CVE-2018-7183 — Critical (CVSS 9.8): Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute…
- CVE-2015-7871 — Critical (CVSS 9.8): Crypto-NAK packets in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to bypass…
- CVE-2015-7853 — Critical (CVSS 9.8): The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote…
- CVE-2015-7705 — Critical (CVSS 9.8): The rate limiting feature in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to have unspecified…
- CVE-2015-7854 — High (CVSS 8.8): Buffer overflow in the password management functionality in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows…
Other CWE-254 vulnerabilities
- CVE-2016-5788 — Critical (CVSS 10.0): General Electric (GE) Bently Nevada 3500/22M USB with firmware before 5.0 and Bently Nevada 3500/22M Serial have open…
- CVE-2015-3972 — Critical (CVSS 10.0): The web interface on Janitza UMG 508, 509, 511, 604, and 605 devices supports only short PIN values for authentication,…
- CVE-2015-1158 — Critical (CVSS 10.0): The add_job function in scheduler/ipp.c in cupsd in CUPS before 2.0.3 performs incorrect free operations for…
- CVE-2019-15149 — Critical (CVSS 9.8): core.py in Mitogen before 0.2.8 has a typo that drops the unidirectional-routing protection mechanism in the case of a…
- CVE-2017-8227 — Critical (CVSS 9.8): Amcrest IPM-721S V2.420.AC00.16.R.20160909 devices have a timeout policy to wait for 5 minutes in case 30 incorrect…
- CVE-2016-9568 — Critical (CVSS 9.8): A security design issue can allow an unprivileged user to interact with the Carbon Black Sensor and perform…
Browse all CWE-254 vulnerabilities →
Threat intelligence
Threat-intel indicators referencing this CVE:
- 197.248.207.139 (ipv4-addr)
- 135.129.128.247 (ipv4-addr)
- 119.201.59.224 (ipv4-addr)
- 125.212.244.35 (ipv4-addr)
- 202.29.220.126 (ipv4-addr)
- 93.42.227.251 (ipv4-addr)
- 82.209.191.11 (ipv4-addr)
- 119.204.60.250 (ipv4-addr)