CVE-2024-20815

Unauthorized hotspot access via unauthenticated characteristic reads

Published Feb 6, 2024 · Updated Aug 19, 2024

Improper authentication in Auto Hotspot on Samsung Mobile Devices before SMR Feb-2024 Release 1 allows adjacent attackers to join a hotspot. The onCharacteristicReadRequest callback processes an Auto Hotspot characteristic read without enforcing the proper conditions for hotspot use. No account or user interaction is required, but the attacker must be within adjacent wireless range; the reported consequence is an unnoticed hotspot connection.

CVSS severity8.0
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper authentication in Auto Hotspot on Samsung Mobile Devices before SMR Feb-2024 Release 1 allows adjacent attackers to join a hotspot. The onCharacteristicReadRequest callback processes an Auto Hotspot characteristic read without enforcing the proper conditions for hotspot use. No account or user interaction is required, but the attacker must be within adjacent wireless range; the reported consequence is an unnoticed hotspot connection.

The record

CVE
CVE-2024-20815
Published
Feb 6, 2024
Updated
Aug 19, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-287
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

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 Mobile DevicesAffected versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
8.0Samsung MobileCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/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.

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-287Improper Authentication

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo