9.8

CVE-2025-38325: ksmbd: add free_transport ops in ksmbd connection

Modified
AliasesUBUNTU-CVE-2025-38325DEBIAN-CVE-2025-38325
Published 10-07-2025Last modified 05-08-2026

Vulnerability summary

CVE-2025-38325 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 40.3% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.46%
0%100%
Low · +0.03 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 6 · Related 6
USN-7833-1USN-7833-2USN-7833-3USN-7833-4USN-7834-1USN-7856-1

Timeline

  1. 10-07-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add free_transport ops in ksmbd connection free_transport function for tcp connection can be called from smbdirect. It will cause kernel oops. This patch add free_transport ops in ksmbd connection, and add each free_transports for tcp and smbdirect.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

Increase +0.03 pp

From 0.43% 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

No weakness data has been published for this record.

Affected systems

Version check

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

Ubuntu89 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ 1da8bd9a10ecd718692732294d15fd801c0eabb5, < 52f5a52dc17a4a7b4363ac03fe2c4ef26f020dc6 | ≥ 1aec4d14cf81b7b3e7b69eb1cfa94144eed7138e, < 3890da762a66191c440b0bd6e3ee45501edbb0c1 | ≥ 21a4e47578d44c6b37c4fc4aba8ed7cc8dbb13de, < 3f3aae77280aad9f5acc6709c596148966f765c7 | ≥ 21a4e47578d44c6b37c4fc4aba8ed7cc8dbb13de, < a89f5fae998bdc4d0505306f93844c9ae059d50c | e59796fc80603bcd8569d4d2e10b213c1918edb4 | ≥ 6.12.26, < 6.12.35 | ≥ 6.14.4, < 6.15 | 6.15
  • linux_kernelEOL≥ 6.12.26, < 6.12.35 | ≥ 6.14.4, < 6.15 | ≥ 6.15.1, < 6.15.4 | 6.15 | 6.15:rc3 | 6.15:rc4 | 6.15:rc5 | 6.15:rc6 | 6.15:rc7 | 6.16:rc1 | 6.16:rc2
Debian1 product
  • linux< 6.12.35-1

3 vendors · 92 products

References

14 links
Show all 14 references