No exploitation reportedFix available

CVE-2025-38562

Q: Is CVE-2025-38562 actively exploited?

Active exploitation of CVE-2025-38562 has not been confirmed. Its EPSS score was 11.9% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2025-38562?

CVE-2025-38562 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2025-08-19
Fixed in6.16.1 · 6.15.10 · 6.12.42 · 6.6.102 · 6.1.148
WeaknessCWE-476

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: fix null pointer dereference error in generate_encryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generate_encryptionkey could happen. sess->Preauth_HashValue is set to NULL if session is valid. So this patch skip generate encryption key if session is valid.

Timeline

dates in UTC

2025-08-1917:15CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 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-2025-38562?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-38562?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

Branch	Affected	Fixed in	Source
6.16	≥ 6.16, < 6.16.1	6.16.1	NVD
6.x	≥ 6.13, < 6.15.10	6.15.10	NVD
6.x	≥ 6.7, < 6.12.42	6.12.42	NVD
6.x	≥ 6.2, < 6.6.102	6.6.102	NVD
6.1	≥ 5.15, < 6.1.148	6.1.148	NVD

Debian debian linux

Branch	Affected	Fixed in	Source
11.0	= 11.0	no fix published	NVD

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

Fix

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

Advisories and patches

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.15.5read 2026-10-23
NVDweakness (CWE)CWE-476read 2026-10-23
FIRST EPSSEPSS score11.9 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published: 2025-08-19
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2025-38562?

Is CVE-2025-38562 actively exploited?

Active exploitation of CVE-2025-38562 has not been confirmed. Its EPSS score was 11.9% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-38562?

CVE-2025-38562 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

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