CVE-2022-32983
CVE-2022-32983 is a medium-severity vulnerability in Nic Knot Resolver with a CVSS 3.x base score of 5.3. 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-290.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-290
- Affected product: Nic Knot Resolver
- Published:
- Last modified:
Description
Knot Resolver through 5.5.1 may allow DNS cache poisoning when there is an attempt to limit forwarding actions by filters.
Frequently asked questions
- What is 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.
- How severe is CVE-2022-32983?
- CVE-2022-32983 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2022-32983 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-32983?
- CVE-2022-32983 affects Nic Knot Resolver. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-32983?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2022-32983 published?
- CVE-2022-32983 was published on 2022-06-20 and last updated on 2026-06-17.
References
- https://github.com/CZ-NIC/knot-resolver/commit/ccb9d9794db5eb757c33becf65cb1cf48ecfd968
- https://knot-resolver.readthedocs.io/en/stable/modules-policy.html#forwarding
Affected products (1)
- cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*
More vulnerabilities in Nic Knot Resolver
- CVE-2023-50387 — High (CVSS 7.5): Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to…
- CVE-2023-46317 — High (CVSS 7.5): Knot Resolver before 5.7.0 performs many TCP reconnections upon receiving certain nonsensical responses from servers.
- CVE-2023-26249 — High (CVSS 7.5): Knot Resolver before 5.6.0 enables attackers to consume its resources, launching amplification attacks and potentially…
- CVE-2022-40188 — High (CVSS 7.5): Knot Resolver before 5.5.3 allows remote attackers to cause a denial of service (CPU consumption) because of…
- CVE-2021-40083 — High (CVSS 7.5): Knot Resolver before 5.3.2 is prone to an assertion failure, triggerable by a remote attacker in an edge case (NSEC3…
- CVE-2018-1110 — High (CVSS 7.5): A flaw was found in knot-resolver before version 2.3.0. Malformed DNS messages may cause denial of service.
All CVEs affecting Nic Knot Resolver →
Other CWE-290 vulnerabilities
- CVE-2026-48567 — Critical (CVSS 10.0): Authentication bypass by spoofing in Azure HorizonDB allows an unauthorized attacker to elevate privileges over a…
- CVE-2026-6213 — Critical (CVSS 10.0): A vulnerability in Remote Spark SparkView before build 1122 allows an attacker to bypasses the local connection check…
- CVE-2026-39858 — Critical (CVSS 10.0): Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is a high…
- CVE-2025-66570 — Critical (CVSS 10.0): cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability…
- CVE-2025-34063 — Critical (CVSS 10.0): A cryptographic authentication bypass vulnerability exists in OneLogin AD Connector prior to 6.1.5 due to the exposure…
- CVE-2023-22814 — Critical (CVSS 10.0): An authentication bypass issue via spoofing was discovered in the token-based authentication mechanism that could allow…