CVE-2025-21927
HIGH EPSS 8.0%
Published Apr 1, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
Published Apr 1, 2025 1y ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
8.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-787 Out-of-bounds Write Memory Safety
Affected Products 7
References 3
- git.kernel.org https://git.kernel.org/stable/c/22b06c89aa6b2d1ecb8aea72edfb9d53af8d5126
- git.kernel.org https://git.kernel.org/stable/c/9fbc953d6b38bc824392e01850f0aeee3b348722
- git.kernel.org https://git.kernel.org/stable/c/ad95bab0cd28ed77c2c0d0b6e76e03e031391064
Remediation
- git.kernel.org https://git.kernel.org/stable/c/22b06c89aa6b2d1ecb8aea72edfb9d53af8d5126
- git.kernel.org https://git.kernel.org/stable/c/9fbc953d6b38bc824392e01850f0aeee3b348722
- git.kernel.org https://git.kernel.org/stable/c/ad95bab0cd28ed77c2c0d0b6e76e03e031391064