CVE-2026-21005

Adjacent file overwrite via path traversal

Published Mar 16, 2026 · Updated Mar 16, 2026

Path traversal in Samsung Smart Switch before 3.7.69.15 allows adjacent attackers to overwrite arbitrary files with the app's privilege. Samsung has not published the affected component or precise path-handling operation; it states only that the patch adds proper validation logic. Exploitation requires adjacency and passive user interaction, and the overwrite is limited to files writable with Smart Switch privilege.

CVSS severity7.1
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Samsung Smart Switch before 3.7.69.15 allows adjacent attackers to overwrite arbitrary files with the app's privilege. Samsung has not published the affected component or precise path-handling operation; it states only that the patch adds proper validation logic. Exploitation requires adjacency and passive user interaction, and the overwrite is limited to files writable with Smart Switch privilege.

The record

CVE
CVE-2026-21005
Published
Mar 16, 2026
Updated
Mar 16, 2026
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Smart Switch
Classifications
CWE-22, CAPEC-126
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 16, 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?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Samsung Smart SwitchAffected versions are unavailable in this record.

Published CVSS scores

7.1Samsung MobileCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
6.5NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-126Path Traversal

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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