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CVE-2015-7975
The nextvar function in NTP before 4.2.8p6 and 4.3.x before 4.3.90 does not properly validate the length of its input, which allows an…
- 6.2MediumCVSS base score
- 0.63%Exploitation in 30 daysEPSS · top 49% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The nextvar function in NTP before 4.2.8p6 and 4.3.x before 4.3.90 does not properly validate the length of its input, which allows an attacker to cause a denial of service (application crash).
Timeline
ID reserved
By mitre
- 16 months later
· 16 months later
Published
- 8 years later
· 8 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.63% · top 49% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.2.
Affected products
n/a
- affected n/a
References
20
- 20160120 Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products - January 2016 (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- USN-3096-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- SUSE-SU-2016:1177 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03766en_us (opens in a new tab)x_refsource_CONFIRMx_transferred
- 81959 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- SUSE-SU-2016:1912 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 1034782 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- openSUSE-SU-2016:1292 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- VU#718152 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- SUSE-SU-2016:1247 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03750en_us (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://security.netapp.com/advisory/ntap-20171031-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2016:1311 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2016:2094 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2016:1175 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://support.ntp.org/bin/view/Main/NtpBug2937 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FreeBSD-SA-16:09 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
- https://bto.bluecoat.com/security-advisory/sa113 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2016:1423 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- GLSA-201607-15 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2015-7872 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2015-7975)Record last updated .