CVE-2025-32091

Privilege escalation via incorrect firmware permissions

Published Nov 11, 2025 · Updated Nov 11, 2025

Incorrect default permissions in Intel Arc B-Series GPU B570 and B580 firmware allow local users with privileged access to escalate privileges. Intel identifies the locus only as firmware used within Ring 1 device drivers and has not disclosed which object's permissions are incorrect or how they are abused. Exploitation requires privileged local system-software access and special internal knowledge, needs no user interaction, and compromises system data and operation.

CVSS severity8.4
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect default permissions in Intel Arc B-Series GPU B570 and B580 firmware allow local users with privileged access to escalate privileges. Intel identifies the locus only as firmware used within Ring 1 device drivers and has not disclosed which object's permissions are incorrect or how they are abused. Exploitation requires privileged local system-software access and special internal knowledge, needs no user interaction, and compromises system data and operation.

The record

CVE
CVE-2025-32091
Published
Nov 11, 2025
Updated
Nov 11, 2025
Vendor
Topcon Positioning Systems, Inc.
Product
Intel Arc B-Series Graphics
Classifications
CWE-276
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Nov 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 11, 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?

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  1. Affected versionversion=See references

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Topcon Positioning Systems, Inc. · Intel Arc B-Series Graphicsversion=See references

Published CVSS scores

8.4Intel CorporationCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.2Intel CorporationCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions

Public exploit references

No public exploit references are available in this record.

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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