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Public proof of conceptFix available

CVE-2025-38501

A public proof of concept exists; no exploitation attested.

  • Published2025-08-16
  • Fixed in6.16.1 · 6.15.10 · 6.12.42 · 6.6.102 · 6.1.148
  • WeaknessCWE-400

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: limit repeated connections from clients with the same IP Repeated connections from clients with the same IP address may exhaust the max connections and prevent other normal client connections. This patch limit repeated connections from clients with the same IP.

Timeline

dates in UTC
  1. 2025-08-1606:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-38501?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-38501?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Linux linux kernel
BranchAffectedFixed in
6.16≥ 6.16, < 6.16.16.16.1
6.x≥ 6.13, < 6.15.106.15.10
6.x≥ 6.7, < 6.12.426.12.42
6.x≥ 6.2, < 6.6.1026.6.102
6.1≥ 5.15, < 6.1.1486.1.148
Debian debian linux
BranchAffectedFixed in
11.0= 11.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2025-38501 Red Hat Product Security

    kernel: ksmbd: limit repeated connections from clients with the same IP

Full record on NVD

Fix

  1. Update Linux linux kernel to 6.16.1 · 6.15.10 · 6.12.42 · 6.6.102 · 6.1.148

Advisories and patches

Detection

read 2026-10-23 19:24 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedkeymaker-arch/KSMBDrain
PoC-in-GitHub

Sources

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2025-08-16
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2025-38501?

In the Linux kernel, the following vulnerability has been resolved: ksmbd: limit repeated connections from clients with the same IP Repeated connections from clients with the same IP address may exhaust the max connections and prevent other normal client connections. This patch limit repeated connections from clients with the same IP.

Is CVE-2025-38501 actively exploited?

A proof-of-concept exploit exists for CVE-2025-38501, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-38501?

CVE-2025-38501 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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