CVE-2026-23791: CWE-787 Out-of-bounds Write in Samsung Exynos 1280 firmware
CVE-2026-23791 is an out-of-bounds write vulnerability in the Display Processing Unit (DPU) driver of Samsung Exynos mobile processors including models 1280, 2200, 1380, 1480, 2400, 1580, 2500, 1680, and 2600. The flaw arises from missing input length validation during color mode LUT parsing, which can cause kernel memory corruption and potentially allow privilege escalation. The vulnerability has a medium severity rating with a CVSS score of 4.2. No official patch or remediation details are provided in the available data.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-23791) affects the DPU driver in multiple Samsung Exynos processors. It is caused by an out-of-bounds write due to insufficient input length validation in color mode LUT parsing. Exploitation could lead to kernel memory corruption and privilege escalation. The CVSS 3.1 base score is 4.2, reflecting a medium severity with local attack vector, high attack complexity, low privileges required, no user interaction, and impact limited to integrity and availability. No known exploits in the wild or vendor patch information are currently available.
Potential Impact
Successful exploitation can result in kernel memory corruption, which may allow an attacker with local access and low privileges to escalate their privileges. The impact affects system integrity and availability but does not directly compromise confidentiality. The medium CVSS score reflects these limited but significant impacts.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit local access to trusted users and monitor for updates from Samsung regarding patches for affected Exynos firmware versions.
CVE-2026-23791: CWE-787 Out-of-bounds Write in Samsung Exynos 1280 firmware
Description
CVE-2026-23791 is an out-of-bounds write vulnerability in the Display Processing Unit (DPU) driver of Samsung Exynos mobile processors including models 1280, 2200, 1380, 1480, 2400, 1580, 2500, 1680, and 2600. The flaw arises from missing input length validation during color mode LUT parsing, which can cause kernel memory corruption and potentially allow privilege escalation. The vulnerability has a medium severity rating with a CVSS score of 4.2. No official patch or remediation details are provided in the available data.
CVSS v3.1
Score 4.2medium
Affected software
Samsung
Exynos 1280 firmware
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-23791) affects the DPU driver in multiple Samsung Exynos processors. It is caused by an out-of-bounds write due to insufficient input length validation in color mode LUT parsing. Exploitation could lead to kernel memory corruption and privilege escalation. The CVSS 3.1 base score is 4.2, reflecting a medium severity with local attack vector, high attack complexity, low privileges required, no user interaction, and impact limited to integrity and availability. No known exploits in the wild or vendor patch information are currently available.
Potential Impact
Successful exploitation can result in kernel memory corruption, which may allow an attacker with local access and low privileges to escalate their privileges. The impact affects system integrity and availability but does not directly compromise confidentiality. The medium CVSS score reflects these limited but significant impacts.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, limit local access to trusted users and monitor for updates from Samsung regarding patches for affected Exynos firmware versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-01-16T00:00:00.000Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa74b1055bf5e2cf5548847
Added to database: 09/14/2026, 01:17:04 UTC
Last enriched: 09/14/2026, 01:31:52 UTC
Last updated: 09/14/2026, 01:31:52 UTC
Views: 5
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