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CVE-2025-38720

20
FAUCET Score

CVE-2025-38720 describes a deadlock vulnerability in the Linux kernel's hibmcge network driver. This flaw, categorized as CWE-667 (Improper Synchronization), arises when multiple hibmcge devices on the same PCI bus attempt to acquire the rtnl_lock during the reset process, leading to a system hang. With a CVSS score of 5.5 (Medium), this vulnerability has a local attack vector (AV:L) and low attack complexity (AC:L), requiring local user privileges (PR:L) to trigger. A successful exploit could lead to a denial of service (A:H) by rendering the system unresponsive, though it does not impact confidentiality or integrity. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, indicating a low level of public awareness or concern at this time.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.14, < 6.15.11CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.16, < 6.16.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.10%
Probability of exploitation in next 30 days
EPSS Percentile
1.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0010 is in the 8th percentile among its peer group of 15,940 CVEs.

Social Chatter

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.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2025-38720Moderate

kernel: net: hibmcge: fix rtnl deadlock issue

Sep 4, 2025

References

git.kernel.org / stable/c/1343a8994ca7dba78f5dd818e89d68331c21c35d
Patch
git.kernel.org / stable/c/c875503a9b9082928d7d3fc60b5400d16fbfae4e
Patch
git.kernel.org / stable/c/d85a6346fd6f595c4914205762d0cdf35c004a5e
Patch