CVE-2019-6443
An issue was discovered in NTPsec before 1.1.3.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 66.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
An issue was discovered in NTPsec before 1.1.3. Because of a bug in ctl_getitem, there is a stack-based buffer over-read in read_sysvars in ntp_control.c in ntpd.
- CVSS 3.0
- 9.1 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 66.88% probability · 99th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 16 January 2019
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- ntpsec/ntpsec
- Source
- cve@mitre.org
EPSS moved from 36.6% on 21 September 2026 to 66.9% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- https://dumpco.re/blog/ntpsec-bugsExploit, Third Party Advisory
- https://dumpco.re/bugs/ntpsec-oobread1Exploit, Third Party Advisory
- https://github.com/ntpsec/ntpsec/blob/NTPsec_1_1_3/NEWSRelease Notes, Third Party Advisory
- https://www.exploit-db.com/exploits/46175/Exploit, Third Party Advisory, VDB Entry
- https://dumpco.re/blog/ntpsec-bugsExploit, Third Party Advisory
- https://dumpco.re/bugs/ntpsec-oobread1Exploit, Third Party Advisory
- https://github.com/ntpsec/ntpsec/blob/NTPsec_1_1_3/NEWSRelease Notes, Third Party Advisory
- https://www.exploit-db.com/exploits/46175/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.