CVE-2025-23100Public exploit

Device crash via unchecked NPU fence dereference

Published Jun 3, 2025 · Updated Jun 4, 2025

NULL pointer dereference in the NPU of Samsung Exynos 1280, 1380, 1480, 2200, and 2400 allows local users to crash the device. After an output-fence descriptor is replaced with another file type, npu_dma_fence_to_sync_pt dereferences the resulting NULL fence without checking it. An untrusted app can reach the NPU driver through ioctl calls; malformed VS4L_VERTEXIOC_BOOTUP types can also time out the NPU firmware watchdog and crash the application processor.

CVSS severity7.5
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the NPU of Samsung Exynos 1280, 1380, 1480, 2200, and 2400 allows local users to crash the device. After an output-fence descriptor is replaced with another file type, npu_dma_fence_to_sync_pt dereferences the resulting NULL fence without checking it. An untrusted app can reach the NPU driver through ioctl calls; malformed VS4L_VERTEXIOC_BOOTUP types can also time out the NPU firmware watchdog and crash the application processor.

The record

CVE
CVE-2025-23100
Published
Jun 3, 2025
Updated
Jun 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 4, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

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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