CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.8. It affects Linux.
CVE
CVE-2025-21927
Severity
CRITICAL
CVSS
9.8
EPSS
0.45%
Linux
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu() nvme_tcp_recv_pdu() doesn't check the validity of the header length. When header digests are enabled, a target might send a packet with an invalid header length (e.g. 255), causing nvme_tcp_verify_hdgst() to access memory outside the allocated area and cause memory corruptions by overwriting it with the calculated digest. Fix this by rejecting packets with an unexpected header length.
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