Possible file descriptor exhaustion in forward-dnsupdate_CVE-2026-33610

5.9 / 10

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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.

Basic Information

ID CVE-2026-33610

Source OX

Published Apr 22, 2026 at 14:00

Modified Apr 22, 2026 at 14:26

Affected Product

Vendor PowerDNS

Product Authoritative

Version 5.0.0

Affected Versions PowerDNS Authoritative 5.0.0
PowerDNS Authoritative 4.9.0

CWE Classification

CWE-400

References

docs.powerdns.com /authoritative/security-advisories/powerdns-advisory-powerdns-2026-05.html

{
    "lastseen": "",
    "description": "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.",
    "published": "2026-04-22T14:00:51.529Z",
    "modified": "2026-04-22T14:26:32.724Z",
    "type": "cve",
    "title": "Possible file descriptor exhaustion in forward-dnsupdate",
    "source": "OX",
    "references": "https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-05.html",
    "id": "CVE-2026-33610",
    "bulletinFamily": "",
    "cwe": [
        "",
        "CWE-400"
    ],
    "cvelist": null,
    "sourceData": "PowerDNS Authoritative 5.0.0\nPowerDNS Authoritative 4.9.0",
    "sourceHref": "",
    "cvss": {
        "score": 5.9,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Authoritative",
    "version": "5.0.0",
    "vendor": "PowerDNS",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}