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CVE-2025-21927

critical · 9.8

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.

9.8
CVSS
0.5%
EPSS (exploit prob.)
41st
EPSS percentile
2025-04-01
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-787

Affected products

VendorProductAffected versions
linuxlinux_kernel>= 5.0, < 6.12.19
linuxlinux_kernel>= 6.13, < 6.13.7
linuxlinux_kernel6.14
linuxlinux_kernel6.14
linuxlinux_kernel6.14
linuxlinux_kernel6.14
linuxlinux_kernel6.14

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-21927