01 Record

CVE-2025-38501

ksmbd: limit repeated connections from clients with the same IP

HighPUBLISHEDCNA: Linux

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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02 Description

ksmbd: limit repeated connections from clients with the same IP

03 Exploitation and scoring

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 82.1% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-08-16 05:30Z1 YR AGO

Last updated

2026-08-05 12:02Z2 MO AGO

Reserved

2025-04-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.2

Document digest

dd5dacf95d4c580c24715f4eff64f5dd88efe6b8ba9037d3cb2cebed936ca471

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf to < cb092fc3a62972a4aa47c9fe356c2c6a01cd840b, 0626e6641f6b467447c81dd7678a69c66f7746cf to < fa1c47af4ff641cf9197ecdb1f8240cbb30389c1, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 7e5d91d3e6c62a9755b36f29c35288f06c3cd86b, 0626e6641f6b467447c81dd7678a69c66f7746cf to < f1ce9258bcbce2491f9f71f7882b6eed0b33ec65, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 6073afe64510c302b7a0683a01e32c012eff715d, 0626e6641f6b467447c81dd7678a69c66f7746cf to < e6bb9193974059ddbb0ce7763fa3882bd60d4dc3, 5.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/cb092fc3a62972a4aa47c9fe356c2c6a01cd840b
git.kernel.orghttps://git.kernel.org/stable/c/fa1c47af4ff641cf9197ecdb1f8240cbb30389c1
git.kernel.orghttps://git.kernel.org/stable/c/7e5d91d3e6c62a9755b36f29c35288f06c3cd86b
git.kernel.orghttps://git.kernel.org/stable/c/f1ce9258bcbce2491f9f71f7882b6eed0b33ec65
git.kernel.orghttps://git.kernel.org/stable/c/6073afe64510c302b7a0683a01e32c012eff715d
git.kernel.orghttps://git.kernel.org/stable/c/e6bb9193974059ddbb0ce7763fa3882bd60d4dc3
github.comhttps://github.com/keymaker-arch/KSMBDrain
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/15/2

07 Fixed in

Debian 12

linux
Fixed in 6.1.148-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.43-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.16.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.