CVE-2025-40780 Affecting bind package, versions <9.20.16-r0


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.03% (8th percentile)

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  • Snyk IDSNYK-WOLFILATEST-BIND-15375206
  • published4 Mar 2026
  • disclosed22 Oct 2025

Introduced: 22 Oct 2025

CVE-2025-40780  (opens in a new tab)

How to fix?

Upgrade Wolfi bind to version 9.20.16-r0 or higher.

NVD Description

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