CVE-2025-37799 is a vulnerability in the Linux kernel's vmxnet3 driver, specifically affecting its XDP handling for certain packet sizes. This flaw can lead to malformed packets and the leakage of uninitialized kernel data onto the network wire. The vulnerability is rated Medium severity (CVSS 5.5), with a local attack vector and high impact on availability, though confidentiality and integrity are not directly impacted. There is no evidence of active exploitation, public exploit code, or inclusion in the KEV catalog, but it has garnered some community discussion and media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 6.6.23, < 6.6.89CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.7.11, < 6.8CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.8.2, < 6.12.26CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.13, < 6.14.5CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
6.15CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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Feb 24, 2026kernel: vmxnet3: Fix malformed packet sizing in vmxnet3_process_xdp
May 3, 2025