CVE-2026-23790

Kernel memory corruption via DMA buffer double free

Published Sep 14, 2026 · Updated Sep 14, 2026

Double free in the DPU driver in Samsung Exynos 1280 Firmware allows attackers to corrupt kernel memory via DMA buffer reallocation. Improper pointer management during buffer replacement permits the DMA allocation to be freed twice, leaving memory subject to reuse. Samsung has not disclosed the input path, required privileges, or whether the corruption can be driven to a crash or code execution.

CVSS severityUnavailable
Unscored
EPSS probability0.09%
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 DPU driver in Samsung Exynos 1280 Firmware allows attackers to corrupt kernel memory via DMA buffer reallocation. Improper pointer management during buffer replacement permits the DMA allocation to be freed twice, leaving memory subject to reuse. Samsung has not disclosed the input path, required privileges, or whether the corruption can be driven to a crash or code execution.

The record

CVE
CVE-2026-23790
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
Samsung Electronics
Product
Samsung Exynos 1280 Firmware
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 2026Record 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 <=2025-12-29

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Samsung Electronics · Samsung Exynos 1280 Firmwareversion=0 <=2025-12-29

Published CVSS scores

No CVSS assessment is available in this record.

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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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