Filtered by vendor Powerdns
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Filtered by product Recursor
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Total
53 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2025-30192 | 1 Powerdns | 1 Recursor | 2026-04-15 | 7.5 High |
| An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries. The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled. | ||||
| CVE-2024-25590 | 1 Powerdns | 1 Recursor | 2026-04-15 | 7.5 High |
| An attacker can publish a zone containing specific Resource Record Sets. Repeatedly processing and caching results for these sets can lead to a denial of service. | ||||
| CVE-2025-59029 | 1 Powerdns | 1 Recursor | 2026-02-19 | 5.3 Medium |
| An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qtype set to ANY. | ||||
| CVE-2025-59030 | 1 Powerdns | 1 Recursor | 2026-02-19 | 7.5 High |
| An attacker can trigger the removal of cached records by sending a NOTIFY query over TCP. | ||||
| CVE-2023-50868 | 6 Debian, Fedoraproject, Isc and 3 more | 19 Debian Linux, Fedora, Bind and 16 more | 2025-12-23 | 7.5 High |
| The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations. | ||||
| CVE-2023-50387 | 8 Fedoraproject, Isc, Microsoft and 5 more | 18 Fedora, Bind, Windows Server 2008 and 15 more | 2025-11-04 | 7.5 High |
| Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records. | ||||
| CVE-2015-1868 | 2 Fedoraproject, Powerdns | 3 Fedora, Authoritative, Recursor | 2025-04-12 | N/A |
| The label decompression functionality in PowerDNS Recursor 3.5.x, 3.6.x before 3.6.3, and 3.7.x before 3.7.2 and Authoritative (Auth) Server 3.2.x, 3.3.x before 3.3.2, and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a name that refers to itself. | ||||
| CVE-2015-5470 | 1 Powerdns | 2 Authoritative, Recursor | 2025-04-12 | N/A |
| The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1868. | ||||
| CVE-2014-8601 | 2 Debian, Powerdns | 2 Debian Linux, Recursor | 2025-04-12 | N/A |
| PowerDNS Recursor before 3.6.2 does not limit delegation chaining, which allows remote attackers to cause a denial of service ("performance degradations") via a large or infinite number of referrals, as demonstrated by resolving domains hosted by ezdns.it. | ||||
| CVE-2023-22617 | 1 Powerdns | 1 Recursor | 2025-04-03 | 7.5 High |
| A remote attacker might be able to cause infinite recursion in PowerDNS Recursor 4.8.0 via a DNS query that retrieves DS records for a misconfigured domain, because QName minimization is used in QM fallback mode. This is fixed in 4.8.1. | ||||
| CVE-2023-26437 | 1 Powerdns | 1 Recursor | 2025-02-13 | 3.4 Low |
| Denial of service vulnerability in PowerDNS Recursor allows authoritative servers to be marked unavailable.This issue affects Recursor: through 4.6.5, through 4.7.4 , through 4.8.3. | ||||
| CVE-2022-37428 | 2 Fedoraproject, Powerdns | 2 Fedora, Recursor | 2024-11-21 | 6.5 Medium |
| PowerDNS Recursor up to and including 4.5.9, 4.6.2 and 4.7.1, when protobuf logging is enabled, has Improper Cleanup upon a Thrown Exception, leading to a denial of service (daemon crash) via a DNS query that leads to an answer with specific properties. | ||||
| CVE-2022-27227 | 2 Fedoraproject, Powerdns | 3 Fedora, Authoritative Server, Recursor | 2024-11-21 | 7.5 High |
| In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before 4.4.8, 4.5.x before 4.5.8, and 4.6.x before 4.6.1, insufficient validation of an IXFR end condition causes incomplete zone transfers to be handled as successful transfers. | ||||
| CVE-2020-25829 | 2 Opensuse, Powerdns | 3 Backports Sle, Leap, Recursor | 2024-11-21 | 7.5 High |
| An issue has been found in PowerDNS Recursor before 4.1.18, 4.2.x before 4.2.5, and 4.3.x before 4.3.5. A remote attacker can cause the cached records for a given name to be updated to the Bogus DNSSEC validation state, instead of their actual DNSSEC Secure state, via a DNS ANY query. This results in a denial of service for installation that always validate (dnssec=validate), and for clients requesting validation when on-demand validation is enabled (dnssec=process). | ||||
| CVE-2020-14196 | 1 Powerdns | 1 Recursor | 2024-11-21 | 5.3 Medium |
| In PowerDNS Recursor versions up to and including 4.3.1, 4.2.2 and 4.1.16, the ACL restricting access to the internal web server is not properly enforced. | ||||
| CVE-2020-12244 | 4 Debian, Fedoraproject, Opensuse and 1 more | 5 Debian Linux, Fedora, Backports Sle and 2 more | 2024-11-21 | 7.5 High |
| An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation. | ||||
| CVE-2020-10995 | 4 Debian, Fedoraproject, Opensuse and 1 more | 5 Debian Linux, Fedora, Backports Sle and 2 more | 2024-11-21 | 7.5 High |
| PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted reply by an authoritative name server to amplify the resulting traffic between the recursive and other authoritative name servers. Both types of service can suffer degraded performance as an effect. This is triggered by random subdomains in the NSDNAME in NS records. PowerDNS Recursor 4.1.16, 4.2.2 and 4.3.1 contain a mitigation to limit the impact of this DNS protocol issue. | ||||
| CVE-2020-10030 | 1 Powerdns | 1 Recursor | 2024-11-21 | 8.8 High |
| An issue has been found in PowerDNS Recursor 4.1.0 up to and including 4.3.0. It allows an attacker (with enough privileges to change the system's hostname) to cause disclosure of uninitialized memory content via a stack-based out-of-bounds read. It only occurs on systems where gethostname() does not have '\0' termination of the returned string if the hostname is larger than the supplied buffer. (Linux systems are not affected because the buffer is always large enough. OpenBSD systems are not affected because the returned hostname always has '\0' termination.) Under some conditions, this issue can lead to the writing of one '\0' byte out-of-bounds on the stack, causing a denial of service or possibly arbitrary code execution. | ||||
| CVE-2019-3807 | 1 Powerdns | 1 Recursor | 2024-11-21 | N/A |
| An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authoritative servers with the AA flag not set were not properly validated, allowing an attacker to bypass DNSSEC validation. | ||||
| CVE-2019-3806 | 1 Powerdns | 1 Recursor | 2024-11-21 | 8.1 High |
| An issue has been found in PowerDNS Recursor versions after 4.1.3 before 4.1.9 where Lua hooks are not properly applied to queries received over TCP in some specific combination of settings, possibly bypassing security policies enforced using Lua. | ||||