CVE-2025-40780
Published: Oct 22, 2025
Modified: Nov 4, 2025
CVSS v3.1
8.6
Description
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.
| Vendor | Product | Versions |
|---|---|---|
ISC | BIND 9 | affected 9.16.0 - <= 9.16.50affected 9.18.0 - <= 9.18.39affected 9.20.0 - <= 9.20.13affected 9.21.0 - <= 9.21.12affected 9.16.8-S1 - <= 9.16.50-S1+2 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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