CVE-2025-38501

ksmbd: limit repeated connections from clients with the same IP

At a glance

Severity: HIGH 7.5
EPSS: EPSS 2.17 % · percentile 82 (2026-10-27)
State: PUBLISHED
Published: 2025-08-16
Updated: 2026-08-05
Assigner: Linux
NVD status: Analyzed

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	Linux
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · nvd@nist.gov (Primary)
CVSS 3.1	HIGH 7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-400

European references

ENISA EUVD · EUVD-2025-25072
GCVE · GCVE-0-2025-38501

CERT-FR advisories

CERTFR-2026-AVI-0326 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2026-AVI-0316 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2026-AVI-0246 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
CERTFR-2026-AVI-0227 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
CERTFR-2026-AVI-0218 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2026-AVI-0194 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
CERTFR-2026-AVI-0169 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
CERTFR-2025-AVI-1135 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
CERTFR-2025-AVI-1075 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
CERTFR-2025-AVI-1050 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
CERTFR-2025-AVI-0894 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 5.15 < 6.1.148
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 6.2 < 6.6.102
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 6.7 < 6.12.42
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 6.13 < 6.15.10
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 6.16 < 6.16.1
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Affected products

Product	Versions
Linux · Linux	affected 0626e6641f6b467447c81dd7678a69c66f7746cf < cb092fc3a62972a4aa47c9fe356c2c6a01cd840b ; affected 0626e6641f6b467447c81dd7678a69c66f7746cf < fa1c47af4ff641cf9197ecdb1f8240cbb30389c1 ; affected 0626e6641f6b467447c81dd7678a69c66f7746cf < 7e5d91d3e6c62a9755b36f29c35288f06c3cd86b ; affected 0626e6641f6b467447c81dd7678a69c66f7746cf < f1ce9258bcbce2491f9f71f7882b6eed0b33ec65 ; affected 0626e6641f6b467447c81dd7678a69c66f7746cf < 6073afe64510c302b7a0683a01e32c012eff715d ; affected 0626e6641f6b467447c81dd7678a69c66f7746cf < e6bb9193974059ddbb0ce7763fa3882bd60d4dc3
Linux · Linux	affected 5.15 ; unaffected 0 < 5.15 ; unaffected 6.1.148 ≤ 6.1.* ; unaffected 6.6.102 ≤ 6.6.* ; unaffected 6.12.42 ≤ 6.12.* ; unaffected 6.15.10 ≤ 6.15.*

Product

Versions

Linux · Linux

affected 0626e6641f6b467447c81dd7678a69c66f7746cf < cb092fc3a62972a4aa47c9fe356c2c6a01cd840b ; affected 0626e6641f6b467447c81dd7678a69c66f7746cf < fa1c47af4ff641cf9197ecdb1f8240cbb30389c1 ; affected 0626e6641f6b467447c81dd7678a69c66f7746cf < 7e5d91d3e6c62a9755b36f29c35288f06c3cd86b ; affected 0626e6641f6b467447c81dd7678a69c66f7746cf < f1ce9258bcbce2491f9f71f7882b6eed0b33ec65 ; affected 0626e6641f6b467447c81dd7678a69c66f7746cf < 6073afe64510c302b7a0683a01e32c012eff715d ; affected 0626e6641f6b467447c81dd7678a69c66f7746cf < e6bb9193974059ddbb0ce7763fa3882bd60d4dc3

Linux · Linux

affected 5.15 ; unaffected 0 < 5.15 ; unaffected 6.1.148 ≤ 6.1.* ; unaffected 6.6.102 ≤ 6.6.* ; unaffected 6.12.42 ≤ 6.12.* ; unaffected 6.15.10 ≤ 6.15.*

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD