Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2025-39754

17
FAUCET Score

CVE-2025-39754 describes a race condition in the Linux kernel's memory management (mm/smaps) component, specifically within the smaps_hugetlb_range function. This vulnerability, affecting the Linux kernel, can lead to a system crash (BUG_ON) when smaps_hugetlb_range executes concurrently with memory migration. Rated with a CVSS score of 4.7 (Medium), it requires local access and high attack complexity, with the primary impact being a denial of service (system unavailability). There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.4, < 6.12.43CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.13, < 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

4.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.0
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 15th percentile among its peer group of 1,297 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (5)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (2)

redhatCVE-2025-39754Moderate

kernel: mm/smaps: fix race between smaps_hugetlb_range and migration

Sep 11, 2025
microsoft2025-Sep/CVE-2025-39754Moderate

mm/smaps: fix race between smaps_hugetlb_range and migration

Sep 9, 2025

References

git.kernel.org / stable/c/09fc018f48871123ad5dbd7b03c956580232ed76
Patch
git.kernel.org / stable/c/2a1f3663974162b8f1e098196f557cfc1d160138
Patch
git.kernel.org / stable/c/45d19b4b6c2d422771c29b83462d84afcbb33f01
Patch
git.kernel.org / stable/c/b625883ccbcc2b57808db51d1375b1d7b9bcb3e5
Patch