CVE-2026-3592

MEDIUM

5.3

CVSS v3

Description

BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources. This issue affects BIND 9 versions 9.11.0 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, 9.11.3-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.

CWE-408

How to fix

Remediation Available

bind9Debian

Fixed in:1:9.16.50-1~deb11u6CVE-2026-3592

Fixed in:1:9.18.49-1~deb12u2CVE-2026-3592

Fixed in:1:9.20.23-1~deb13u1CVE-2026-3592

Fixed in:1:9.20.23-1CVE-2026-3592

bindRed Hat / RHEL

Fixed in:main@noarchRHSA-2026:20334

Fixed in:main@aarch64RHSA-2026:20334

Fixed in:main@srcRHSA-2026:20334

Fixed in:main@x86_64RHSA-2026:20334

bindRocky

Fixed in:main@aarch64RHSA-2026:20334

Fixed in:main@x86_64RHSA-2026:20334

Fixed in:main@noarchRHSA-2026:20334

Fixed in:main@srcRHSA-2026:20334

bind9Ubuntu

Fixed in:1:9.18.39-0ubuntu0.22.04.4USN-8293-1

Fixed in:1:9.18.39-0ubuntu0.24.04.5USN-8293-1

Fixed in:1:9.20.11-1ubuntu2.4USN-8293-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.41%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Patch3

Vendor Advisory1

kb.isc.org

Related Vulnerabilities

Other CWE-408 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-1657	High	7.5	1.3%	-	-
CVE-2022-2576	High	7.5	0.6%	-	-
CVE-2026-11605	Medium	7.5	0.5%	-	Fix
CVE-2026-41405	High	7.5	0.5%	-	Fix
CVE-2026-41374	Medium	5.3	0.5%	-	Fix
CVE-2026-41331	Medium	5.3	0.3%	-	Fix

Common questions

How do I fix CVE-2026-3592?

Published advisories record a fix for 4 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2026-3592 being actively exploited?

Not that we know of. CVE-2026-3592 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.41% is the estimated probability that it will be exploited in the next 30 days. That is higher than 33% of all scored CVEs.

How severe is CVE-2026-3592?

CVE-2026-3592 has a CVSS v3 base score of 5.3, rated moderate. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-3592 affect?

Published advisories record a fix for bind9 (Debian), bind (Red Hat / RHEL), bind (Rocky), bind9 (Ubuntu). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-3592

Markdown

[![CVE-2026-3592](https://tridentstack.com/cve/badge/CVE-2026-3592.svg)](https://tridentstack.com/cve/CVE-2026-3592)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-3592"><img src="https://tridentstack.com/cve/badge/CVE-2026-3592.svg" alt="CVE-2026-3592"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-24.