CVE•Published 2026-08-19•Modified 2026-09-01•1 article on news•4 live references•NVD data
CVE-2026-49428Freebsd · Freebsd
Vulnerability data via NVD (ingested)
CVSS v3.1
8.4
HIGH
CVSS:3.1/AV:L/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
Weaknesses (CWE)
Description
Certain system calls, such open(2) with the O_TRUNC flag set, and fspacectl(2), could incorrectly free memory in largepage objects. These operations are not permitted on largepage objects, but the implementation did not verify this. An unprivileged local user can abuse the bug to access freed kernel memory. This can be exploited to escalate privileges.
Timeline
Published 2026-08-19
Modified 2026-09-01
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 tag147 hosts
vuln:CVE-2026-49428Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Freebsd"Hosts Shodan identified as running Freebsd.
More intel sources (5)
Shodan report
vuln:CVE-2026-49428Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-49428Censys host search filtered to this CVE id.
grep.app
CVE-2026-49428Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-49428GitHub code search for direct mentions.
Google dork
"CVE-2026-49428" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-49428 on GitHub.