#VU108898 Buffer overflow in Linux kernel - CVE-2025-37873

Vulnerability identifier: #VU108898

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-37873

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the dev_kfree_skb_any() function in drivers/net/ethernet/broadcom/bnxt/bnxt.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.14, 6.14.1, 6.14.2, 6.14.3

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External links
https://git.kernel.org/stable/c/12f2d033fae957d84c2c0ce604d2a077e61fa2c0
https://git.kernel.org/stable/c/21e70f694bc0dcb40174b0940cc52a7769fc19e0
https://git.kernel.org/stable/c/3742c55de00266fa7c8fd2c5d61a453d223a9cd1
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.4

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.