How severe is CVE-2019-10163?

CVE-2019-10163 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 none, and availability low.

Is CVE-2019-10163 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-10163?

CVE-2019-10163 primarily affects Powerdns Authoritative. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-10163?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-10163 published?

CVE-2019-10163 was published on 2019-07-30 and last updated on 2026-06-17.

CVE-2019-10163

CVE-2019-10163 is a medium-severity vulnerability in Powerdns Authoritative 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Powerdns Authoritative
Published: 2019-07-30
Last modified: 2026-06-17

Description

A Vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.9, 4.0.8 allowing a remote, authorized master server to cause a high CPU load or even prevent any further updates to any slave zone by sending a large number of NOTIFY messages. Note that only servers configured as slaves are affected by this issue.

Frequently asked questions

What is CVE-2019-10163?: A Vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.9, 4.0.8 allowing a remote, authorized master server to cause a high CPU load or even prevent any further updates to any slave zone by sending a large number of NOTIFY messages. Note that only servers configured as slaves are affected by this issue.
How severe is CVE-2019-10163?: CVE-2019-10163 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 none, and availability low.
Is CVE-2019-10163 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-10163?: CVE-2019-10163 primarily affects Powerdns Authoritative. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-10163?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-10163 published?: CVE-2019-10163 was published on 2019-07-30 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*
cpe:2.3:a:powerdns:authoritative:4.1.0:-:*:*:*:*:*:*
cpe:2.3:o:opensuse:backports:sle-15:-:*:*:*:*:*:*
cpe:2.3:o:opensuse:backports:sle-15:sp1:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

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