# IBM PowerVM VIOS vulnerabilities

Source: https://junglewise.ai/threats/technologies/powervm-vios  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/powervm-vios.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 73 vulnerabilities in IBM PowerVM VIOS: 0 in the last 7 days and 73 in the last 90 days, 12 of them critical and 0 exploited in the wild. The most recent, CVE-2026-16821, was published on 28 August 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 73
- All time: 73 (12 critical, 0 exploited in the wild)

## About IBM PowerVM VIOS

IBM virtualization operating system for managing virtual machines on Power Systems.

## Latest IBM PowerVM VIOS vulnerabilities

- [CVE-2026-16821: IBM AIX format string vulnerability in privileged component](https://junglewise.ai/threats/cve-2026-16821-ibm-aix-format-string-vulnerability-in-privileged-component) (high, CVSS 7, published 28 Aug 2026)
- [CVE-2026-19783: IBM AIX and PowerVM VIOS kernel memory corruption in directory reads](https://junglewise.ai/threats/cve-2026-19783-ibm-aix-and-powervm-vios-kernel-memory-corruption-in-directory) (medium, CVSS 6.7, published 20 Aug 2026)
- [CVE-2026-19449: IBM AIX and PowerVM VIOS cmdnim privilege escalation](https://junglewise.ai/threats/cve-2026-19449-ibm-aix-and-powervm-vios-cmdnim-privilege-escalation) (high, CVSS 8.8, published 20 Aug 2026)
- [CVE-2026-19448: IBM AIX and PowerVM VIOS IPsec ESP stack memory corruption](https://junglewise.ai/threats/cve-2026-19448-ibm-aix-and-powervm-vios-ipsec-esp-stack-memory-corruption) (medium, CVSS 6.5, published 20 Aug 2026)
- [CVE-2026-19446: IBM AIX and PowerVM VIOS RPC DoS via malformed UDP packet](https://junglewise.ai/threats/cve-2026-19446-ibm-aix-and-powervm-vios-rpc-dos-via-malformed-udp-packet) (high, CVSS 7.5, published 20 Aug 2026)
- [CVE-2026-19442: IBM AIX pointer validation flaw in Virtual SCSI initiator](https://junglewise.ai/threats/cve-2026-19442-ibm-aix-pointer-validation-flaw-in-virtual-scsi-initiator) (high, CVSS 8.2, published 20 Aug 2026)
- [CVE-2026-18842: IBM AIX and PowerVM VIOS out-of-bounds write privilege escalation](https://junglewise.ai/threats/cve-2026-18842-ibm-aix-and-powervm-vios-out-of-bounds-write-privilege-escalation) (high, CVSS 8.4, published 20 Aug 2026)
- [CVE-2026-18840: IBM AIX and PowerVM VIOS code execution via pointer validation](https://junglewise.ai/threats/cve-2026-18840-ibm-aix-and-powervm-vios-code-execution-via-pointer-validation) (high, CVSS 8.2, published 20 Aug 2026)
- [CVE-2026-18835: IBM AIX and PowerVM VIOS command injection vulnerability](https://junglewise.ai/threats/cve-2026-18835-ibm-aix-and-powervm-vios-command-injection-vulnerability) (critical, CVSS 9.9, published 20 Aug 2026)
- [CVE-2026-18832: IBM AIX and PowerVM VIOS heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-18832-ibm-aix-and-powervm-vios-heap-based-buffer-overflow) (high, CVSS 8.8, published 20 Aug 2026)
- [CVE-2026-18828: IBM AIX and PowerVM VIOS stack-based buffer overflow](https://junglewise.ai/threats/cve-2026-18828-ibm-aix-and-powervm-vios-stack-based-buffer-overflow) (medium, CVSS 5.4, published 20 Aug 2026)
- [CVE-2026-18824: IBM AIX and PowerVM VIOS OS command injection](https://junglewise.ai/threats/cve-2026-18824-ibm-aix-and-powervm-vios-os-command-injection) (high, CVSS 8.4, published 20 Aug 2026)
- [CVE-2026-18822: IBM AIX and PowerVM VIOS denial of service via directory parsing](https://junglewise.ai/threats/cve-2026-18822-ibm-aix-and-powervm-vios-denial-of-service-via-directory-parsing) (medium, CVSS 4.4, published 20 Aug 2026)
- [CVE-2026-18716: IBM AIX and PowerVM VIOS out-of-bounds read](https://junglewise.ai/threats/cve-2026-18716-ibm-aix-and-powervm-vios-out-of-bounds-read) (high, CVSS 7.9, published 20 Aug 2026)
- [CVE-2026-18670: IBM AIX and PowerVM VIOS integer underflow denial of service and information disclosure](https://junglewise.ai/threats/cve-2026-18670-ibm-aix-and-powervm-vios-integer-underflow-denial-of-service-and) (high, CVSS 8.2, published 20 Aug 2026)
- [CVE-2026-17436: IBM AIX heap-based buffer overflow in NIM](https://junglewise.ai/threats/cve-2026-17436-ibm-aix-heap-based-buffer-overflow-in-nim) (high, CVSS 8.8, published 20 Aug 2026)
- [CVE-2026-17425: IBM AIX and PowerVM VIOS stack buffer overflow](https://junglewise.ai/threats/cve-2026-17425-ibm-aix-and-powervm-vios-stack-buffer-overflow) (high, CVSS 7.5, published 20 Aug 2026)
- [CVE-2026-17424: IBM AIX pathname security bypass](https://junglewise.ai/threats/cve-2026-17424-ibm-aix-pathname-security-bypass) (medium, CVSS 4.8, published 20 Aug 2026)
- [CVE-2026-17423: IBM AIX and PowerVM VIOS out-of-bounds read](https://junglewise.ai/threats/cve-2026-17423-ibm-aix-and-powervm-vios-out-of-bounds-read) (high, CVSS 7.7, published 20 Aug 2026)
- [CVE-2026-17195: IBM AIX and PowerVM VIOS out-of-bounds write denial of service](https://junglewise.ai/threats/cve-2026-17195-ibm-aix-and-powervm-vios-out-of-bounds-write-denial-of-service) (medium, CVSS 6.5, published 20 Aug 2026)
- [CVE-2026-17171: IBM AIX and PowerVM VIOS arbitrary file overwrite via symlink following](https://junglewise.ai/threats/cve-2026-17171-ibm-aix-and-powervm-vios-arbitrary-file-overwrite-via-symlink) (high, CVSS 7.8, published 20 Aug 2026)
- [CVE-2026-17170: IBM AIX and PowerVM VIOS denial of service via improper allocation validation](https://junglewise.ai/threats/cve-2026-17170-ibm-aix-and-powervm-vios-denial-of-service-via-improper) (high, CVSS 7.5, published 20 Aug 2026)
- [CVE-2026-17168: IBM AIX and PowerVM VIOS stack-based buffer overflow](https://junglewise.ai/threats/cve-2026-17168-ibm-aix-and-powervm-vios-stack-based-buffer-overflow) (high, CVSS 8.5, published 20 Aug 2026)
- [CVE-2026-17165: IBM AIX and PowerVM VIOS NULL pointer dereference denial of service](https://junglewise.ai/threats/cve-2026-17165-ibm-aix-and-powervm-vios-null-pointer-dereference-denial-of) (high, CVSS 7.5, published 20 Aug 2026)
- [CVE-2026-17163: IBM AIX and PowerVM VIOS denial of service via improper array validation](https://junglewise.ai/threats/cve-2026-17163-ibm-aix-and-powervm-vios-denial-of-service-via-improper-array) (high, CVSS 7.5, published 20 Aug 2026)

## Most severe IBM PowerVM VIOS vulnerabilities

- [CVE-2026-18835: IBM AIX and PowerVM VIOS command injection vulnerability](https://junglewise.ai/threats/cve-2026-18835-ibm-aix-and-powervm-vios-command-injection-vulnerability) (critical, CVSS 9.9, published 20 Aug 2026)
- [CVE-2026-17142: IBM AIX and PowerVM VIOS NIM authentication bypass](https://junglewise.ai/threats/cve-2026-17142-ibm-aix-and-powervm-vios-nim-authentication-bypass) (critical, CVSS 9.8, published 20 Aug 2026)
- [CVE-2026-17160: IBM AIX and PowerVM VIOS integer overflow in size computation](https://junglewise.ai/threats/cve-2026-17160-ibm-aix-and-powervm-vios-integer-overflow-in-size-computation) (critical, CVSS 9.8, published 20 Aug 2026)
- [CVE-2026-17157: IBM AIX and PowerVM VIOS stack buffer overflow remote code execution](https://junglewise.ai/threats/cve-2026-17157-ibm-aix-and-powervm-vios-stack-buffer-overflow-remote-code) (critical, CVSS 9.8, published 20 Aug 2026)
- [CVE-2026-17152: IBM AIX and PowerVM VIOS buffer overflow remote code execution](https://junglewise.ai/threats/cve-2026-17152-ibm-aix-and-powervm-vios-buffer-overflow-remote-code-execution) (critical, CVSS 9.8, published 20 Aug 2026)
- [CVE-2026-17141: IBM AIX buffer overflow in NIM](https://junglewise.ai/threats/cve-2026-17141-ibm-aix-buffer-overflow-in-nim) (critical, CVSS 9.8, published 20 Aug 2026)
- [CVE-2026-17136: IBM AIX and PowerVM VIOS format string vulnerability in NIM](https://junglewise.ai/threats/cve-2026-17136-ibm-aix-and-powervm-vios-format-string-vulnerability-in-nim) (critical, CVSS 9.8, published 20 Aug 2026)
- [CVE-2026-17122: IBM AIX and PowerVM VIOS stack-based buffer overflow](https://junglewise.ai/threats/cve-2026-17122-ibm-aix-and-powervm-vios-stack-based-buffer-overflow) (critical, CVSS 9.8, published 20 Aug 2026)
- [CVE-2026-17118: IBM AIX and PowerVM VIOS use-after-free remote code execution](https://junglewise.ai/threats/cve-2026-17118-ibm-aix-and-powervm-vios-use-after-free-remote-code-execution) (critical, CVSS 9.8, published 20 Aug 2026)
- [CVE-2026-17040: IBM AIX and PowerVM VIOS buffer overflow](https://junglewise.ai/threats/cve-2026-17040-ibm-aix-and-powervm-vios-buffer-overflow) (critical, CVSS 9.8, published 20 Aug 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 72 | 12 | 0 |
| 24 Aug 2026 | 1 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other IBM technologies

- [IBM API Connect](https://junglewise.ai/threats/technologies/api-connect): 207 vulnerabilities
- [IBM AIX](https://junglewise.ai/threats/technologies/aix): 181 vulnerabilities
- [IBM Langflow](https://junglewise.ai/threats/technologies/langflow-oss): 154 vulnerabilities
- [IBM i](https://junglewise.ai/threats/technologies/i): 120 vulnerabilities
- [IBM Guardium Data Protection](https://junglewise.ai/threats/technologies/guardium-data-protection): 93 vulnerabilities
- [IBM Vios](https://junglewise.ai/threats/technologies/vios): 72 vulnerabilities
- [IBM WebSphere Application Server](https://junglewise.ai/threats/technologies/websphere-application-server): 67 vulnerabilities
- [IBM WebSphere Application Server Liberty](https://junglewise.ai/threats/technologies/websphere-application-server-liberty): 56 vulnerabilities
- [IBM Verify Identity Access](https://junglewise.ai/threats/technologies/verify-identity-access): 50 vulnerabilities
- [IBM Datastage On Cloud Pak For Data](https://junglewise.ai/threats/technologies/datastage-on-cloud-pak-for-data): 48 vulnerabilities
- [IBM Mq](https://junglewise.ai/threats/technologies/mq): 46 vulnerabilities
- [IBM Financial Transaction Manager](https://junglewise.ai/threats/technologies/financial-transaction-manager): 45 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "IBM PowerVM VIOS vulnerabilities", https://junglewise.ai/threats/technologies/powervm-vios, 9 November 2026.