CVE-2026-19783
Last modified
CVE-2026-19783 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause kernel memory corruption due to insufficient validation. A crafted filesystem image can trigger an out-of-bounds kernel-stack write during directory reads, causing a system crash or potentially enabling privilege escalation.. EPSS estimates a 0.12% chance of exploitation in the next 30 days.
Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a local attacker to cause kernel memory corruption due to insufficient validation. A crafted filesystem image can trigger an out-of-bounds kernel-stack write during directory reads, causing a system crash or potentially enabling privilege escalation.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ibm | Vios | >= 4.1.0, < 4.1.0.50 |
| Ibm | Vios | >= 4.1.1.0, < 4.1.1.30 |
| Ibm | Vios | >= 4.1.2.0, < 4.1.2.20 |
| Ibm | Aix | >= 7.2.5, <= 7.2.5.212 |
| Ibm | Aix | >= 7.3.2, <= 7.3.2.5 |
| Ibm | Aix | >= 7.3.3, <= 7.3.3.2 |
| Ibm | Aix | >= 7.3.4, <= 7.3.4.1 |
References
- https://www.ibm.com/support/pages/node/7283858Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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