CVE-2026-40719 | MaraDNS 3.5.0036 Deadwood control flow

VDB-357671 · CVE-2026-40719 · GCVE-0-2026-40719 MARADNS 3.5.0036 DEADWOOD CONTROL FLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.3 $0-$5k 2.26+ Summaryinfo A vulnerability classified as problematic has been found in MaraDNS 3.5.0036. The affected element is an unknown function of the component Deadwood. The manipulation leads to control flow. This vulnerability is documented as CVE-2026-40719. The attack can be initiated remotely. There is not any exploit available. Detailsinfo A vulnerability, which was classified as problematic, has been found in MaraDNS 3.5.0036. This issue affects some unknown processing of the component Deadwood. The manipulation with an unknown input leads to a control flow vulnerability. Using CWE to declare the problem leads to CWE-670. The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated. Impacted is availability. The summary by CVE is: Deadwood in MaraDNS 3.5.0036 allows attackers to exhaust connection slots via a zone whose authoritative nameserver address cannot be resolved. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-40719 since 04/15/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/15/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Name MaraDNS Version 3.5.0036 CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 6.4 VulDB Meta Temp Score: 6.3 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 7.5 CNA Vector (MITRE): 🔒 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: Control flow CWE: CWE-670 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: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/15/2026 Advisory disclosed 04/15/2026 +0 days CVE reserved 04/15/2026 +0 days VulDB entry created 04/15/2026 +0 days VulDB entry last update Sourcesinfo Advisory: github.com Status: Not defined CVE: CVE-2026-40719 (🔒) GCVE (CVE): GCVE-0-2026-40719 GCVE (VulDB): GCVE-100-357671 Entryinfo Created: 04/15/2026 09:19 Changes: 04/15/2026 09:19 (60) Complete: 🔍 Cache ID: 99:93B:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸