Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) Affecting bind-devel package, versions <32:9.16.23-31.el9_6.2


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.03% (8th percentile)

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  • Snyk IDSNYK-CENTOS9-BINDDEVEL-13683174
  • published23 Oct 2025
  • disclosed22 Oct 2025

Introduced: 22 Oct 2025

CVE-2025-40780  (opens in a new tab)
CWE-338  (opens in a new tab)

How to fix?

Upgrade Centos:9 bind-devel to version 32:9.16.23-31.el9_6.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bind-devel package and not the bind-devel package as distributed by Centos. See How to fix? for Centos:9 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