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6.1Medium

Samsung Android

CVE-2026-21103

Path traversal in GalaxyDiagnostics prior to SMR Sep-2026 Release 1 allows physical attackers to access files with system privilege.

What this means for your business

  • It affects Samsung Android. It matters if your company, or a supplier that handles your data, runs it.
  • An attacker can use it only with physical access to the device, without a login, and without anyone at your company clicking anything.

What to do

  1. 1Check whether your company or your suppliers run Samsung Android, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

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Scoring

CVSS
6.1 (v3.1)
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4
6.8
Weakness
CWE-35
Assigned by
mobile.security@samsung.com

Dates

Published
2026-09-09
Last modified
2026-09-10
Sources
NVD

Affected products

  • Samsung Android14.0, 15.0, 16.0, 17.0

As listed in the NVD configuration data. Not a statement about your estate.

References