CVE•Published 2025-08-16•Modified 2026-08-04•1 article on news•5 live references•NVD data
CVE-2023-4515Linux · Linux_kernel
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS percentile
4
Exploit Prediction Scoring System · top 96% of all CVEs
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate command request size In commit 2b9b8f3b68ed ("ksmbd: validate command payload size"), except for SMB2_OPLOCK_BREAK_HE command, the request size of other commands is not checked, it's not expected. Fix it by add check for request size of other commands.
Timeline
Published 2025-08-16
Modified 2026-08-04
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).
Shodan · vuln tag0 hosts
vuln:CVE-2023-4515Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Linux Kernel"Hosts Shodan identified as running Linux Kernel.
More intel sources (5)
Shodan report
vuln:CVE-2023-4515Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2023-4515Censys host search filtered to this CVE id.
grep.app
CVE-2023-4515Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2023-4515GitHub code search for direct mentions.
Google dork
"CVE-2023-4515" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.