CVE-2025-68811
A critical flaw in the Linux kernel’s svcrdma component could allow an attacker to crash the system or potentially execute arbitrary code. The issue was caused by using an incorrect byte offset when copying data, leading to memory corruption. The vulnerability has been fixed in a recent kernel update.
An official fix is available, so this entry is kept for 30 days and then removed automatically.
Who is affected
Linux kernel users, especially those running older kernel versions that have not applied the svcrdma patch. Typical users include servers, desktops, and embedded devices that rely on the Linux kernel.
Real-world impact
An attacker could crash the system or potentially gain arbitrary code execution by exploiting the memory corruption in the svcrdma subsystem.
Why this severity
The CVSS score of 9.8 reflects the vulnerability’s high impact on confidentiality, integrity, and availability, and the fact that it can be exploited remotely with no authentication or user interaction.
What to do about it
- 01Apply the latest Linux kernel update that includes the svcrdma patch.
NVD description indicates the vulnerability has been resolved.
Timeline
- Jan 13, 2026 · Jan 13, 2026PublishedDisclosed and added to the National Vulnerability Database.
- Jul 30, 2026 · 6d agoAdvisory updatedThe NVD record was last revised.
- Jul 30, 2026 · 6d agoOfficial fix availableA vendor patch or mitigation now exists — see the remediation steps above.