CVE-2025-39815
Last modified
CVE-2025-39815 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: fix stack overrun when loading vlenb The userspace load can put up to 2048 bits into an xlen bit stack buffer. We want only xlen bits, so check the size beforehand.. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: fix stack overrun when loading vlenb The userspace load can put up to 2048 bits into an xlen bit stack buffer. We want only xlen bits, so check the size beforehand.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 6.8, < 6.12.45 | — |
| Linux | Linux Kernel | >= 6.13, < 6.16.5 | — |
| Linux | Linux Kernel | 6.17 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2025-39815?
How severe is CVE-2025-39815?
How do I fix CVE-2025-39815?
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 2025
- CVE-2025-3981A vulnerability, which was classified as problematic, has be…5.3
- CVE-2025-39810In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2025-39811In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-39812In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-39813In the Linux kernel, the following vulnerability has been re…4.7
- CVE-2025-39814In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-39816In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-39817In the Linux kernel, the following vulnerability has been re…7.1
- CVE-2025-39818In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2025-39819In the Linux kernel, the following vulnerability has been re…5.5
- CVE-2025-3982A vulnerability, which was classified as problematic, was fo…8.8
- CVE-2025-39820In the Linux kernel, the following vulnerability has been re…5.5
Are you affected by CVE-2025-39815?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST