CVE-2025-37796

FAUCET Score

CVE-2025-37796 is a use-after-free vulnerability in the Linux kernel's at76c50x Wi-Fi driver, specifically within the at76_disconnect function, affecting Linux kernel versions. This flaw occurs because the code attempts to access a freed memory object, potentially leading to system instability, information disclosure, or arbitrary code execution, and a memory leak of the USB device. With a CVSS score of 7.8 (High), it has a local attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Currently, there is no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed on the KEV catalog, though it has garnered notable community discussion and media coverage.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 3.17.1, < 5.4.293CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 5.5, < 5.10.237CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 5.11, < 5.15.181CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 5.16, < 6.1.135CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::
		>= 6.2, < 6.6.88CPE matchmatch criteria	cpe:2.3:o:linux:linux_kernel::::::::

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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 Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

1.8

Impact Score

5.9

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.18%

Probability of exploitation in next 30 days

EPSS Percentile

7.4%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.0018 is in the 30th percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (13)

autodeskpatch availablevia llm_extracted

View patch

freepbxpatch availablevia llm_extracted

View patch

honeywellpatch availablevia llm_extracted

View patch

microsoftpatch availablevia msrc

Product: azl3 kernel 6.6.85.1-4 on Azure Linux 3.0Fixed in: 6.6.92.2-1

microsoftpatch availablevia msrc

Product: 19529-17084Fixed in: 6.6.92.2-1

microsoftpatch availablevia msrc

Product: 19734-17084Fixed in: 6.6.92.2-1

microsoftpatch availablevia msrc

Product: azl3 kernel 6.6.92.2-1 on Azure Linux 3.0Fixed in: 6.6.92.2-1