CVE-2019-3871
A vulnerability was found in PowerDNS Authoritative Server before 4.0.7 and before 4.1.7.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 12.6%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
Description
A vulnerability was found in PowerDNS Authoritative Server before 4.0.7 and before 4.1.7. An insufficient validation of data coming from the user when building a HTTP request from a DNS query in the HTTP Connector of the Remote backend, allowing a remote user to cause a denial of service by making the server connect to an invalid endpoint, or possibly information disclosure by making the server connect to an internal endpoint and somehow extracting meaningful information about the response
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 12.63% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- powerdns/authoritative server · fedoraproject/fedora
- Source
- secalert@redhat.com
EPSS moved from 10.6% on 21 September 2026 to 12.6% on 3 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00022.html
- http://www.openwall.com/lists/oss-security/2019/03/18/4Exploit, Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/107491Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3871Exploit, Issue Tracking, Patch, Third Party Advisory
- https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-03.htmlVendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00039.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GWUHF6MRSQ3YO7UUISGLV7MXCAGBW2VD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ROFI6OTWF4GKONNSNEDUCW6LVSSEBZNF/
- https://seclists.org/bugtraq/2019/Apr/8
- https://www.debian.org/security/2019/dsa-4424
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00022.html
- http://www.openwall.com/lists/oss-security/2019/03/18/4Exploit, Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/107491Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3871Exploit, Issue Tracking, Patch, Third Party Advisory
- https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2019-03.htmlVendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00039.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GWUHF6MRSQ3YO7UUISGLV7MXCAGBW2VD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ROFI6OTWF4GKONNSNEDUCW6LVSSEBZNF/
- https://seclists.org/bugtraq/2019/Apr/8
- https://www.debian.org/security/2019/dsa-4424
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.