CVE•Published 2026-08-19•Modified 2026-08-24•1 article on news•4 live references•NVD data
CVE-2026-16839Ibm · Aix
Vulnerability data via NVD (ingested)
CVSS v3.1
9.4
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
EPSS percentile
42
Exploit Prediction Scoring System · top 58% of all CVEs
Weaknesses (CWE)
Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to obtain sensitive information due to an integer underflow in the IPv4 IP-options parser.
Timeline
Published 2026-08-19
Modified 2026-08-24
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-2026-16839Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Aix"Hosts Shodan identified as running Aix.
More intel sources (5)
Shodan report
vuln:CVE-2026-16839Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-16839Censys host search filtered to this CVE id.
grep.app
CVE-2026-16839Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-16839GitHub code search for direct mentions.
Google dork
"CVE-2026-16839" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.