Dashboard / CVE-2023-32256

CVE-2023-32256

HIGH
MEDIUM Priority: 0.05 BB Relevance: 65/100
Published: 2025-08-01 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

Network No Auth No Interaction Scope Change

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
S: Changed
C: Low
I: None
A: High

Description

A flaw was found in the Linux kernel's ksmbd component. A race condition between smb2 close operation and logoff in multichannel connections could result in a use-after-free issue.

Weakness Classification (1)

Affected Software (5)

VendorProductVersion
— — 0 < 5.15.145
— — 6.0.0 < 6.0.*
— — 6.1.0 < 6.1.29
— — 6.2.0 < 6.2.16
— — 6.3.0 < 6.3.2

References & Advisories (4)

https://bugzilla.redhat.com/show_bug.cgi?id=2385885
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

65 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H

EPSS — Exploitation Probability

0.61%
Raw Score 0.006150
Percentile 50.0%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00615
2026-11-12
0.00615
2026-11-10
0.00615
2026-11-09
0.00615
2026-11-08
0.00615
2026-11-07
0.00615
2026-11-06
0.00615

Intelligence Sources

mitre ref →
nvd ref →

External Links