CVE-2026-74515
Last modified
CVE-2026-74515 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Reject adapter interrupt forwarding if already enabled The MPCIFC instruction doesn't allow registering adapter interrupts without first unregistering. So reject any request to enable interrupt forwarding if its already enabled for the zPCI device. EPSS estimates a 0.13% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Reject adapter interrupt forwarding if already enabled The MPCIFC instruction doesn't allow registering adapter interrupts without first unregistering. So reject any request to enable interrupt forwarding if its already enabled for the zPCI device. This also fixes overwriting and thus leaking resources when the ioctl is called multiple times for the same device.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < 642d2d1067f7c4d753ae0e3ba5bc98b43cfe3c70; >= 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < 78d9648e7e960546d5b72504a0b0358cd8bb1e9d; >= 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < 6be1ff49ba81f96a6fa55915e6d920be43ac57cc; >= 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < 6837f0ae85fd54cf64c8a0c7c530bba2fae0a207; >= 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < 591952b63a9f976da7d49f719f36ec826ee2a575; >= 3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc, < 8fa01be5a6149404adb82c0979a78f6347edd3ef |
| Linux | Linux | 6.0 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-74515?
How severe is CVE-2026-74515?
How do I fix CVE-2026-74515?
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.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-7451A maliciously crafted TIF file, when parsed through Autodesk…7.8
- CVE-2026-74510In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-74511Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2026-74512In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-74513In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-74514In the Linux kernel, the following vulnerability has been re…
- CVE-2026-74516In the Linux kernel, the following vulnerability has been re…8.2
- CVE-2026-74517In the Linux kernel, the following vulnerability has been re…9.3
- CVE-2026-74518In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-74519In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-7452A maliciously crafted WRL file, when parsed through Autodesk…7.8
- CVE-2026-74520In the Linux kernel, the following vulnerability has been re…8.8
Are you affected by CVE-2026-74515?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST