What is CVE-2022-32983?

CVE-2022-32983 is a medium-severity vulnerability in Nic Knot Resolver, classified under Authentication Bypass by Spoofing. CVSS score: 5.3/10. Published 2022-06-20.

How severe is CVE-2022-32983?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Nic Knot Resolver

CVE-2022-32983

Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by filters.

Published 2022-06-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (52.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000

Affected products

Nic Knot Resolver

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

github.com/CZ-NIC/knot-resolver/commit/ccb9d9794db5eb757c33becf65cb1cf48ecfd968 (Patch, Third Party Advisory)
knot-resolver.readthedocs.io/en/stable/modules-policy.html (Vendor Advisory)

Frequently asked questions

What is CVE-2022-32983?: CVE-2022-32983 is a medium-severity vulnerability in Nic Knot Resolver, classified under Authentication Bypass by Spoofing. CVSS score: 5.3/10. Published 2022-06-20.
How severe is CVE-2022-32983?: Medium severity. CVSS v3 base score is 5.3 out of 10.