CVE-2026-33610 | PowerDNS Authoritative up to 4.9.13/5.0.3 File Descriptor denial of service

VDB-358966 · CVE-2026-33610 · GCVE-0-2026-33610 POWERDNS AUTHORITATIVE UP TO 4.9.13/5.0.3 FILE DESCRIPTOR DENIAL OF SERVICE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.7 $0-$5k 0.50+ Summaryinfo A vulnerability was found in PowerDNS Authoritative up to 4.9.13/5.0.3. It has been declared as problematic. This vulnerability affects unknown code of the component File Descriptor Handler. Executing a manipulation can lead to denial of service. This vulnerability is handled as CVE-2026-33610. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component. Detailsinfo A vulnerability classified as problematic was found in PowerDNS Authoritative up to 4.9.13/5.0.3. This vulnerability affects some unknown processing of the component File Descriptor Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes: A rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS secondary server forwards a DNS update request to it. The weakness was released by ylwango613. The advisory is available at docs.powerdns.com. This vulnerability was named CVE-2026-33610 since 03/23/2026. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project. Upgrading to version 4.9.14 or 5.0.4 eliminates this vulnerability. Productinfo Type Domain Name Software Vendor PowerDNS Name Authoritative Version 4.9.0 4.9.1 4.9.2 4.9.3 4.9.4 4.9.5 4.9.6 4.9.7 4.9.8 4.9.9 4.9.10 4.9.11 4.9.12 4.9.13 5.0.0 5.0.1 5.0.2 5.0.3 License open-source CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.8 VulDB Meta Temp Score: 4.7 VulDB Base Score: 3.7 VulDB Temp Score: 3.6 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 5.9 CNA Vector: 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Denial of service CWE: CWE-404 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Authoritative 4.9.14/5.0.4 Timelineinfo 03/23/2026 CVE reserved 04/22/2026 +29 days Advisory disclosed 04/22/2026 +0 days VulDB entry created 04/22/2026 +0 days VulDB entry last update Sourcesinfo Advisory: docs.powerdns.com Researcher: ylwango613 Status: Confirmed CVE: CVE-2026-33610 (🔒) GCVE (CVE): GCVE-0-2026-33610 GCVE (VulDB): GCVE-100-358966 Entryinfo Created: 04/22/2026 17:29 Changes: 04/22/2026 17:29 (31), 04/22/2026 17:30 (34) Complete: 🔍 Cache ID: 99:E5A:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸