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CVE-2025-38519

20
FAUCET Score

CVE-2025-38519 is a divide-by-zero vulnerability in the Linux kernel's mm/damon component, specifically within the damon_get_intervals_score() function, affecting Linux and Linux Kernel products. This flaw can lead to a system crash when processing zero-sized memory regions or when the intervals_goal.access_bp value is zero. It carries a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring low privileges, and resulting in high availability impact (system crash). There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.15, < 6.15.7CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
6.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*
6.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*
6.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*

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
0.13%
Probability of exploitation in next 30 days
EPSS Percentile
2.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0013 is in the 18th 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-2025-38519

kernel: mm/damon: fix divide by zero in damon_get_intervals_score()

Aug 16, 2025

References

git.kernel.org / stable/c/bd225b9591442065beb876da72656f4a2d627d03
Patch
git.kernel.org / stable/c/ca4bb9ac706f05ead8ac1cce7b8245fc0645a687
Patch