CVE•Published 2025-12-04•Modified 2026-10-15•1 article on news•5 live references•NVD data
CVE-2025-40253
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
21
Exploit Prediction Scoring System · top 79% of all CVEs
Description
In the Linux kernel, the following vulnerability has been resolved: s390/ctcm: Fix double-kfree The function 'mpc_rcvd_sweep_req(mpcginfo)' is called conditionally from function 'ctcmpc_unpack_skb'. It frees passed mpcginfo. After that a call to function 'kfree' in function 'ctcmpc_unpack_skb' frees it again. Remove 'kfree' call in function 'mpc_rcvd_sweep_req(mpcginfo)'. Bug detected by the clang static analyzer.
Timeline
Published 2025-12-04
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-2025-40253Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-40253Censys host search filtered to this CVE id.
grep.app
CVE-2025-40253Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-40253GitHub code search for direct mentions.
Google dork
"CVE-2025-40253" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.