CVE-2026-19492
LOWDescription
IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, and FW1060.00 through FW1060.81 is affected by a vulnerability in a hypervisor call interface. An attacker with root access to a guest partition can read a limited amount of hypervisor memory, potentially exposing sensitive data belonging to the hypervisor or other guest partitions hosted on the same system, resulting in a confidentiality impact. The attacker has no control over which memory contents are returned. This vulnerability is of particular concern in multi-tenant environments where guests may run arbitrary OS images.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 2% of all known CVEs.
References
Related Vulnerabilities
Other CWE-457 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2009-0901 | High | 8.8 | 37% | - | - |
| CVE-2021-40418 | Critical | 9.8 | 18% | - | - |
| CVE-2019-11038 | Medium | 5.3 | 4.3% | - | Fix |
| CVE-2021-31435 | High | 7.8 | 2.8% | - | - |
| CVE-2021-46570 | High | 7.8 | 2.1% | - | Fix |
| CVE-2021-46566 | High | 7.8 | 2.0% | - | Fix |
Common questions
How do I fix CVE-2026-19492?
Published advisories record a fix for 19 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.
Is CVE-2026-19492 being actively exploited?
Not that we know of. CVE-2026-19492 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.11% is the estimated probability that it will be exploited in the next 30 days. That is higher than 2% of all scored CVEs.
How severe is CVE-2026-19492?
CVE-2026-19492 has a CVSS v3 base score of 3.2, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2026-19492 affect?
Published advisories record a fix for power system e1050 \(9043-mrx\) firmware (NVD), power system e1080 \(9080-hex\) firmware (NVD), power system e1150 \(9043-mru\) firmware (NVD), power system e1180 \(9080-heu\) firmware (NVD), and 15 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-30.