CVE-2026-74707
Last modified
CVE-2026-74707 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: xsk: validate metadata when processing requests The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when preparing the hardware request. User space can change the metadata between those operations and bypass the original validation. Validate the metadata in xsk_tx_metadata_request() and use the resulting flags snapshot for every feature check. Read request fields once so all zero-copy drivers process only values observed after successful validation.. EPSS estimates a 0.18% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: xsk: validate metadata when processing requests The zero-copy path validates TX metadata while obtaining the descriptor context, then reads it again later when preparing the hardware request. User space can change the metadata between those operations and bypass the original validation. Validate the metadata in xsk_tx_metadata_request() and use the resulting flags snapshot for every feature check. Read request fields once so all zero-copy drivers process only values observed after successful validation.
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= ca4419f15abd19ba8be1e109661b60f9f5b6c9f0, < 5fd121971912dee2f5af1efec64462ac722deb17; >= ca4419f15abd19ba8be1e109661b60f9f5b6c9f0, < 0cc7aa6e0d19027fdd42e6fbd156267ac1e3bbba; >= ca4419f15abd19ba8be1e109661b60f9f5b6c9f0, < 849b1664dbda1cf6c63e0fd4f9dec23782b8c851; d9d736c416c9a85f84e15435ba82a177262e745b; >= 6.14.2, < 6.15 |
| Linux | Linux | 6.15 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-74707?
How severe is CVE-2026-74707?
How do I fix CVE-2026-74707?
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-2026-74701In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-74702In the Linux kernel, the following vulnerability has been re…8.8
- CVE-2026-74703In the Linux kernel, the following vulnerability has been re…7.1
- CVE-2026-74704In the Linux kernel, the following vulnerability has been re…8.2
- CVE-2026-74705In the Linux kernel, the following vulnerability has been re…10
- CVE-2026-74706In the Linux kernel, the following vulnerability has been re…
- CVE-2026-74708In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-74709In the Linux kernel, the following vulnerability has been re…
- CVE-2026-7471GitLab has remediated an issue in GitLab EE affecting all ve…3.5
- CVE-2026-74710In the Linux kernel, the following vulnerability has been re…7.8
- CVE-2026-74711In the Linux kernel, the following vulnerability has been re…8.4
- CVE-2026-74712In the Linux kernel, the following vulnerability has been re…9.3
Are you affected by CVE-2026-74707?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST