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Vulnerability details: VCID-m445-c6a1-uugf
Vulnerability ID VCID-m445-c6a1-uugf
Aliases CVE-2026-0398
Summary Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.
Status Published
Exploitability 0.5
Weighted Severity 2.6
Risk 1.3
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
epss 5e-05 https://api.first.org/data/v1/epss?cve=CVE-2026-0398
epss 5e-05 https://api.first.org/data/v1/epss?cve=CVE-2026-0398
epss 5e-05 https://api.first.org/data/v1/epss?cve=CVE-2026-0398
epss 5e-05 https://api.first.org/data/v1/epss?cve=CVE-2026-0398
epss 5e-05 https://api.first.org/data/v1/epss?cve=CVE-2026-0398
cvssv3.1 5.3 https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html
ssvc Track https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-0398
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-0398
1127490 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1127490
powerdns-advisory-2026-01.html https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-02-09T15:36:48Z/ Found at https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html
Exploit Prediction Scoring System (EPSS)
Percentile 0.00208
EPSS Score 5e-05
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T16:39:17.016386+00:00 Debian Oval Importer Import https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.0.0