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CVE-2018-7183
Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by…
- 9.8CriticalCVSS base score
- 10.2%Exploitation in 30 daysEPSS · top 4.3% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array.
Timeline
ID reserved
By mitre
- 20 days later
· 20 days later
Published
- 6 years later
· 6 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 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 10.2% · top 4.3% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
References
11
- GLSA-201805-12 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- FreeBSD-SA-18:02 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
- USN-3707-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3707-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 103351 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://www.oracle.com//security-alerts/cpujul2021.html (opens in a new tab)x_refsource_MISCx_transferred
- https://security.netapp.com/advisory/ntap-20180626-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://support.ntp.org/bin/view/Main/SecurityNotice#February_2018_ntp_4_2_8p11_NTP_S (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.synology.com/support/security/Synology_SA_18_13 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://support.ntp.org/bin/view/Main/NtpBug3414 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us (opens in a new tab)x_refsource_CONFIRMx_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-2018-18925 (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)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-7183)Record last updated .