CVE-2025-40780 Affecting bind-dnssec-utils package, versions <32:9.18.33-10.el10_1.2


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.02% (7th percentile)

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  • Snyk IDSNYK-ALMALINUX10-BINDDNSSECUTILS-13876278
  • published11 Nov 2025
  • disclosed11 Nov 2025

Introduced: 11 Nov 2025

CVE-2025-40780  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 bind-dnssec-utils to version 32:9.18.33-10.el10_1.2 or higher.
This issue was patched in ALSA-2025:21034.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind-dnssec-utils package and not the bind-dnssec-utils package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it is possible for an attacker to predict the source port and query ID that BIND will use. This issue affects BIND 9 versions 9.16.0 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, 9.16.8-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.

CVSS Base Scores

version 3.1