CVE•Published 2025-10-22•Modified 2026-10-08•1 article on news•4 live references•NVD data
CVE-2025-40780
Vulnerability data via NVD (ingested)
CVSS v3.1
8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
EPSS percentile
38
Exploit Prediction Scoring System · top 62% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2025-10-22
Modified 2026-10-08
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2025-40780Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-40780Censys host search filtered to this CVE id.
grep.app
CVE-2025-40780Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-40780GitHub code search for direct mentions.
Google dork
"CVE-2025-40780" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2025-40780 on GitHub.