CVE•Published 2026-08-20•Modified 2026-08-25•1 article on news•4 live references•NVD data
CVE-2026-18840Ibm · Vios
Vulnerability data via NVD (ingested)
CVSS v3.1
8.2
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS percentile
3
Exploit Prediction Scoring System · top 97% of all CVEs
Weaknesses (CWE)
Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to execute arbitrary code due to improper validation of an attacker-controlled pointer.
Timeline
Published 2026-08-20
Modified 2026-08-25
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-2026-18840Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Ibm Vios"All exposed Ibm Vios instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Vios"HTTP body or banner mentions "Vios" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-18840Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-18840Censys host search filtered to this CVE id.
grep.app
CVE-2026-18840Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-18840GitHub code search for direct mentions.
Google dork
"CVE-2026-18840" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.