SecuriTricks - CVE-2025-40778

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.

Product(s) Impacted

Vendor	Product	Versions
Isc	Binder	9.11.0-9.16.50, 9.18.0-9.18.39, 9.20.0-9.20.13, 9.21.0-9.21.12, 9.11.3-S1-9.16.50-S1, 9.18.11-S1-9.18.39-S1, 9.20.9-S1-9.20.13-S1

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-349

Acceptance of Extraneous Untrusted Data With Trusted Data

The product, when processing trusted data, accepts any untrusted data that is also included with the trusted data, treating the untrusted data as if it were trusted.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	isc	binder	9.11.0-9.16.50	/	/	/	/	/	/	/
a	isc	binder	9.18.0-9.18.39	/	/	/	/	/	/	/
a	isc	binder	9.20.0-9.20.13	/	/	/	/	/	/	/
a	isc	binder	9.21.0-9.21.12	/	/	/	/	/	/	/
a	isc	binder	9.11.3-S1-9.16.50-S1	/	/	/	/	/	/	/
a	isc	binder	9.18.11-S1-9.18.39-S1	/	/	/	/	/	/	/
a	isc	binder	9.20.9-S1-9.20.13-S1	/	/	/	/	/	/	/

References

https://kb.isc.org/docs/cve-2025-40778

CVSS Score

8.6 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE
Scope: CHANGED
Confidentiality Impact: NONE
Integrity Impact: HIGH
Availability Impact: NONE

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

View Vector String

Timeline

Published: Oct. 22, 2025, 4:15 p.m.
Last Modified: Oct. 22, 2025, 9:12 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security-officer@isc.org

CVE-2025-40778