CVE-2025-40778

HIGH

8.6

CVSS v3

Description

Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.

CWE-349

How to fix

Remediation Available

bind9Debian

Fixed in:1:9.16.50-1~deb11u4CVE-2025-40778

Fixed in:1:9.18.41-1~deb12u1CVE-2025-40778

Fixed in:1:9.20.15-1~deb13u1CVE-2025-40778

Fixed in:1:9.20.15-1CVE-2025-40778

bindRocky

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

bindRed Hat / RHEL

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-chrootRocky

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

bind-chrootRed Hat / RHEL

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-debuginfoRed Hat / RHEL

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-debuginfoRocky

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-debugsourceRocky

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-debugsourceRed Hat / RHEL

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-develRed Hat / RHEL

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-develRocky

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-dnssec-docRocky

Fixed in:32:9.16.23-18.el9_4.10RHSA-2025:21817

Fixed in:32:9.16.23-31.el9_6.2RHSA-2025:19951

Fixed in:32:9.16.23-1.el9_0.11RHSA-2025:21889

Fixed in:32:9.16.23-11.el9_2.9RHSA-2025:21887

Fixed in:32:9.16.23-34.el9_7.1RHSA-2025:21110

bind-dnssec-docRed Hat / RHEL

Fixed in:32:9.16.23-34.el9_7.1RHSA-2025:21110

Fixed in:32:9.16.23-31.el9_6.2RHSA-2025:19951

Fixed in:32:9.16.23-18.el9_4.10RHSA-2025:21817

Fixed in:32:9.16.23-11.el9_2.9RHSA-2025:21887

Fixed in:32:9.16.23-1.el9_0.11RHSA-2025:21889

bind-dnssec-utilsRed Hat / RHEL

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

bind-dnssec-utilsRocky

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-dnssec-utils-debuginfoRocky

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

bind-dnssec-utils-debuginfoRed Hat / RHEL

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

bind-docRocky

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.16.23-31.el9_6.2RHSA-2025:19951

Fixed in:32:9.16.23-34.el9_7.1RHSA-2025:21110

Fixed in:32:9.16.23-18.el9_4.10RHSA-2025:21817

bind-docRed Hat / RHEL

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.16.23-34.el9_7.1RHSA-2025:21110

Fixed in:32:9.16.23-18.el9_4.10RHSA-2025:21817

Fixed in:32:9.16.23-31.el9_6.2RHSA-2025:19951

bind-export-develRocky

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.ppcRHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.s390RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.ppc64RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.36-3.el8_6.11RHSA-2025:21736

bind-export-develRed Hat / RHEL

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.ppc64RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.ppcRHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.s390RHSA-2025:22205

Fixed in:32:9.11.36-8.el8_8.8RHSA-2025:21735

bind-export-libsRocky

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.ppc64RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.ppcRHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.s390RHSA-2025:22205

Fixed in:32:9.11.36-16.el8_10.6RHSA-2025:19835

bind-export-libsRed Hat / RHEL

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.ppcRHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.ppc64RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.s390RHSA-2025:22205

Fixed in:32:9.11.36-8.el8_8.8RHSA-2025:21735

bind-export-libs-debuginfoRocky

Fixed in:32:9.11.36-16.el8_10.6RHSA-2025:19835

Fixed in:32:9.11.36-3.el8_6.11RHSA-2025:21736

Fixed in:32:9.11.13-6.el8_2.11RHSA-2025:21741

Fixed in:32:9.11.36-8.el8_8.8RHSA-2025:21735

Fixed in:32:9.11.26-4.el8_4.8RHSA-2025:21740

Fixed in:32:9.11.36-16.el8_10.6RHSA-2025:19835

Fixed in:32:9.11.36-3.el8_6.11RHSA-2025:21736

bind-export-libs-debuginfoRed Hat / RHEL

Fixed in:32:9.11.26-4.el8_4.8RHSA-2025:21740

Fixed in:32:9.11.36-3.el8_6.11RHSA-2025:21736

Fixed in:32:9.11.36-16.el8_10.6RHSA-2025:19835

Fixed in:32:9.11.36-3.el8_6.11RHSA-2025:21736

Fixed in:32:9.11.36-16.el8_10.6RHSA-2025:19835

Fixed in:32:9.11.13-6.el8_2.11RHSA-2025:21741

bind-libsRed Hat / RHEL

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-libsRocky

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-libs-debuginfoRed Hat / RHEL

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

bind-libs-debuginfoRocky

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

Fixed in:32:9.18.33-4.el10_0.2RHSA-2025:19912

Fixed in:32:9.18.33-10.el10_1.2RHSA-2025:21034

bind-libs-liteRocky

Fixed in:32:9.11.4-26.P2.el7_9.19.ppcRHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.s390RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19.ppc64RHSA-2025:22205

Fixed in:32:9.11.4-26.P2.el7_9.19RHSA-2025:22205

Fixed in:32:9.11.26-4.el8_4.8RHSA-2025:21740

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

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

ScopeChanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.66%probability of exploitation in 30 days

49thpercentile

Moderate risk: more likely to be exploited than 49% of all known CVEs.

References

Other references3

Related Vulnerabilities

Other CWE-349 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-9535	Critical	9.8	2.5%	-	-
CVE-2026-32162	High	8.4	2.0%	-	Fix
CVE-2018-1131	High	8.8	1.3%	-	-
CVE-2021-21374	High	8.1	1.0%	-	Fix
CVE-2024-21094	Low	3.7	0.8%	-	Fix
CVE-2025-48804	Medium	6.8	0.6%	-	Fix

Common questions

How do I fix CVE-2025-40778?

Published advisories record a fix for 140 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-2025-40778 being actively exploited?

Not that we know of. CVE-2025-40778 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.66% is the estimated probability that it will be exploited in the next 30 days. That is higher than 49% of all scored CVEs.

How severe is CVE-2025-40778?

CVE-2025-40778 has a CVSS v3 base score of 8.6, rated important. 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-2025-40778 affect?

Published advisories record a fix for bind9 (Debian), bind (Rocky), bind (Red Hat / RHEL), bind-chroot (Rocky), and 136 more. 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-2025-40778

Markdown

[![CVE-2025-40778](https://tridentstack.com/cve/badge/CVE-2025-40778.svg)](https://tridentstack.com/cve/CVE-2025-40778)

HTML

<a href="https://tridentstack.com/cve/CVE-2025-40778"><img src="https://tridentstack.com/cve/badge/CVE-2025-40778.svg" alt="CVE-2025-40778"></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 2025-11-04.