CVE-2026-16911

highpriority · track · 0EPSS 0.008 · 55 %ileDENLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.75% (55th) EPSS

CVSS 8.8 · high

Is it mine?

15 products

Who says so?

3 sources

cert_bund · ncsc_nl · nvd

EPSS · scored 2026-10-27

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote authenticated attacker to execute arbitrary code due to a stack buffer overflow.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@us.ibm.com USexploitability 2.8 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

The CWE weakness classes this flaw belongs to.

Products and version ranges known to be affected.

IBM AIX 7.2all versionscert_bundDEcpe:/o:ibm:aix:7.2
IBM AIX 7.3all versionscert_bundDEcpe:/o:ibm:aix:7.3
IBM Business Automation Workflowall versionscert_bundDEcpe:/a:ibm:business_automation_workflow:-
IBM Security Verify Accessall versionscert_bundDEcpe:/a:ibm:security_verify_access:-
IBM VIOS 4.1all versionscert_bundDEcpe:/a:ibm:vios:4.1
Dell Secure Connect Gateway< 5.36.00.16cert_bundDE
IBM AIX≤ vers:unknown/*ncsc_nlNL
IBM AIX, PowerVM VIOS≤ vers:unknown/*ncsc_nlNL
ibm aix7.2.5 → 7.2.5.212nvdUScpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*
ibm aix7.3.2 → 7.3.2.5nvdUScpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*
ibm aix7.3.3 → 7.3.3.2nvdUScpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*
ibm aix7.3.4 → 7.3.4.1nvdUScpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*
ibm vios4.1.0 → 4.1.0.50nvdUScpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*
ibm vios4.1.1.0 → 4.1.1.30nvdUScpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*
ibm vios4.1.2.0 → 4.1.2.20nvdUScpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*

Vendor and ecosystem advisories describing this.

NCSC-2026-0321Meerdere kwetsbaarheden verholpen in IBM AIX en IBM PowerVM VIOSNL2026-08-21csaf · ncsc_nlNL
IBM heeft kwetsbaarheden verholpen in AIX en PowerVM VIOS. Ook heeft IBM eerdere kwetsbaarheden in, onder andere, DB2, WebSphere, Oracle producten als Java en GraalVM, PostgreSQL, OpenSSH en Perl verholpen voor de producten geproduceerd voor AIX.
WID-SEC-W-2026-2858IBM AIX und VIOS: Mehrere SchwachstellenDeutsch2026-08-16csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM AIX und IBM VIOS ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, und um Sicherheitsvorkehrungen zu umgehen.

Which sources assert this record, and when.

published 2026-08-19modified 2026-10-26

External citations — patches, advisories, analysis.

scry

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