CVE•Published 2025-11-12•Modified 2026-10-15•1 article on news•5 live references•NVD data
CVE-2025-40158
Vulnerability data via NVD (ingested)
CVSS v3.1
8.1
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
36
Exploit Prediction Scoring System · top 64% of all CVEs
Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6_output() Use RCU in ip6_output() in order to use dst_dev_rcu() to prevent possible UAF. We can remove rcu_read_lock()/rcu_read_unlock() pairs from ip6_finish_output2().
Timeline
Published 2025-11-12
Modified 2026-10-15
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-2025-40158Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-40158Censys host search filtered to this CVE id.
grep.app
CVE-2025-40158Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-40158GitHub code search for direct mentions.
Google dork
"CVE-2025-40158" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.