CVE-2022-39902

IMEI disclosure via unauthenticated emergency calls

Published Dec 8, 2022 · Updated Apr 22, 2025

Improper authorization in Samsung Mobile Devices before SMR Dec-2022 Release 1 allows remote attackers to obtain an IMEI by emergency call. The Exynos baseband processes the emergency-call path without proper authentication and returns sensitive device information, including the IMEI. The attacker requires adjacent cellular access but no credentials or user interaction; the documented consequence is confidentiality loss only.

CVSS severity6.5
Medium
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Samsung Mobile Devices before SMR Dec-2022 Release 1 allows remote attackers to obtain an IMEI by emergency call. The Exynos baseband processes the emergency-call path without proper authentication and returns sensitive device information, including the IMEI. The attacker requires adjacent cellular access but no credentials or user interaction; the documented consequence is confidentiality loss only.

The record

CVE
CVE-2022-39902
Published
Dec 8, 2022
Updated
Apr 22, 2025
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-285
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 8, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record 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=Exynos baseband <SMR Dec-2022 Release 1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile Devicesversion=Exynos baseband <SMR Dec-2022 Release 1

Published CVSS scores

6.5Samsung MobileCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.

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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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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