7.5

CVE-2025-38501: ksmbd: limit repeated connections from clients with the same IP

Analyzed
AliasesUBUNTU-CVE-2025-38501DEBIAN-CVE-2025-38501
Published 16-08-2025Last modified 05-08-2026

Vulnerability summary

CVE-2025-38501 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in debian debian_linux. EPSS estimates a 2.17% chance of exploitation in the next 30 days, higher than 82.2% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
2.17%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 25 · Related 22
DLA-4328-1MGASA-2025-0234MGASA-2025-0235USN-7879-1USN-7879-2USN-7879-3

Timeline

  1. 16-08-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

2.17%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

Increase +0.07 pp

From 2.10% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu148 products
  • linuxAll versions (No fix recorded) | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.1.148-1 | < 6.12.43-1 | < 6.16.3-1
  • debian_linuxEOL11.0
Linux2 products
  • linux≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < cb092fc3a62972a4aa47c9fe356c2c6a01cd840b | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < fa1c47af4ff641cf9197ecdb1f8240cbb30389c1 | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 7e5d91d3e6c62a9755b36f29c35288f06c3cd86b | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < f1ce9258bcbce2491f9f71f7882b6eed0b33ec65 | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 6073afe64510c302b7a0683a01e32c012eff715d | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < e6bb9193974059ddbb0ce7763fa3882bd60d4dc3 | 5.15
  • linux_kernel≥ 5.15, < 6.1.148 | ≥ 6.2, < 6.6.102 | ≥ 6.7, < 6.12.42 | ≥ 6.13, < 6.15.10 | ≥ 6.16, < 6.16.1

3 vendors · 152 products

References

36 links
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