CVE-2026-33598 | BDVDB-2026-328448 Detail

PowerDNSDNSdist

Description#

A cached crafted response can cause an out-of-bounds read if custom Lua code calls getDomainListByAddress() or getAddressListByDomain() on a packet cache.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact none, availability impact low. Attack vector: network.

Weaknesses#

CWE-125 Out-of-bounds Read

References#

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html

Exploit#

No public exploit known

History#

Version 12026-04-22Record published in the CVE List.

Published

Published: 2026-04-22
Last modified: 2026-04-22

Vendor information

Vendor: PowerDNS
Product: DNSdist

All PowerDNS vulnerabilities

Score

4.8 Medium

EPSS

1.0%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 65.2.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 1.9.0 and < 1.9.13
Fixed
1.9.13
Vulnerable
>= 2.0.0 and < 2.0.4
Fixed
2.0.4

Scoring System

CVSS v4.0

Not available

CVSS v3.1

4.8 Medium

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

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity	None
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).