PowerDNS DNSdist up to 1.9.11/2.0.2 newDNSPacketOverlay out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in PowerDNS DNSdist up to 1.9.11/2.0.2. Affected by this issue is the function newDNSPacketOverlay. The manipulation results in out-of-bounds. This vulnerability is identified as CVE-2026-24028. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in PowerDNS DNSdist up to 1.9.11/2.0.2. Affected is the function newDNSPacketOverlay. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. CVE summarizes:

An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.

The weakness was released by Naoki Wakamatsu. The advisory is available at dnsdist.org. This vulnerability is traded as CVE-2026-24028 since 01/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

Upgrading to version 1.9.12 or 2.0.3 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: DNSdist 1.9.12/2.0.3

Timelineinfo

01/20/2026 CVE reserved
03/31/2026 +69 days Advisory disclosed
03/31/2026 +0 days VulDB entry created
03/31/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: dnsdist.org
Researcher: Naoki Wakamatsu
Status: Confirmed

CVE: CVE-2026-24028 (🔒)
GCVE (CVE): GCVE-0-2026-24028
GCVE (VulDB): GCVE-100-354366

Entryinfo

Created: 03/31/2026 14:42
Changes: 03/31/2026 14:42 (65)
Complete: 🔍
Cache ID: 216:187:103

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