High severity8.6NVD Advisory· Published Oct 22, 2025· Updated Apr 15, 2026

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.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.openwall.com/lists/oss-security/2025/10/22/1nvd
gist.github.com/N3mes1s/f76b4a606308937b0806a5256bc1f918nvd
kb.isc.org/docs/cve-2025-40778nvd

News mentions

No linked articles in our index yet.

cvss	0.559
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exploit	0.000
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ransomware	0.000