CVE-2025-48756Public exploit

SCSI device disruption via unchecked group number

Published May 24, 2025 · Updated May 24, 2025

Type confusion in maboroshinokiseki scsir 0.2.0 allows local users to disrupt SCSI device operation via an oversized group number. WriteSameCommand::group_number accepts any u8 and copies it into the command without enforcing the device's smaller 5- or 6-bit field limit. Exploitation requires code execution on a host attached to a susceptible SCSI device, and the published impact is limited to device availability.

CVSS severity9.8
Critical
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in maboroshinokiseki scsir 0.2.0 allows local users to disrupt SCSI device operation via an oversized group number. WriteSameCommand::group_number accepts any u8 and copies it into the command without enforcing the device's smaller 5- or 6-bit field limit. Exploitation requires code execution on a host attached to a susceptible SCSI device, and the published impact is limited to device availability.

The record

CVE
CVE-2025-48756
Published
May 24, 2025
Updated
May 24, 2025
Vendor
maboroshinokiseki
Product
scsir
Classifications
CWE-843, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 24, 2025CVE publishedPublication date reported by the CVE source.
  2. May 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

maboroshinokiseki · scsirversion=0.2.0

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.9MITRECVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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