CVE-2025-23102Public exploit

Local privilege escalation via repeated NPU stream teardown

Published Jun 3, 2025 · Updated Jun 9, 2025

Double free in the NPU of Samsung Exynos mobile processors allows local users to escalate privileges through repeated stream ioctls. The __vb_queue_stop function frees q->format.formats during stream-off without preventing the same allocation from being freed again. Low-privileged access to the NPU ioctl interface is required, and successful exploitation elevates the attacker's privileges.

CVSS severity8.8
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in the NPU of Samsung Exynos mobile processors allows local users to escalate privileges through repeated stream ioctls. The __vb_queue_stop function frees q->format.formats during stream-off without preventing the same allocation from being freed again. Low-privileged access to the NPU ioctl interface is required, and successful exploitation elevates the attacker's privileges.

The record

CVE
CVE-2025-23102
Published
Jun 3, 2025
Updated
Jun 9, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-415, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-415Double Free
T1068Exploitation for Privilege Escalation

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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