Cyber Posture

CVE-2026-3039

High
Microsoft: not affectedMSmacOS: not affectedMacLinux: not affectedLnxMobile: not affectedMobNetwork: not affectedNetApplication: not affectedAppOther: affectedOth

Published: 20 May 2026

Published
20 May 2026
Modified
20 May 2026
KEV Added
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Patch
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CVSS Score 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score N/A
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-3039 is a high-severity Missing Reference to Active Allocated Resource (CWE-771) vulnerability in Isc (inferred from references). Its CVSS base score is 7.5 (High).

Operationally, it is not currently listed in the CISA KEV catalog.

NVD Description

BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive memory consumption when receiving and processing maliciously-constructed packets. Typically these servers will be found in Active Directory integrated DNS deployments and/or Kerberos-secured DNS environments.…

more

This issue affects BIND 9 versions 9.0.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.9.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.

Deeper analysisAI

Automated synthesis unavailable for this CVE.

Details

CWE(s)
CWE-771

Affected Products

Isc
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inferred from references and description; NVD did not file a CPE for this CVE

References