CVE-2019-20606Public exploitNetwork attack vector

Network configuration tampering via unauthenticated OMACP messages

Published Mar 24, 2020 · Updated Aug 5, 2024

Improper authentication in OMACP on Samsung mobile software before May 2019 allows remote attackers to change network settings via SMS. The OMA Client Provisioning handler accepts unauthenticated binary SMS payloads and presents their settings for installation without identifying the sender or clearly exposing the changes. The recipient must accept the provisioning message, after which an attacker-controlled proxy can redirect device traffic and alter browser or service settings.

CVSS severity9.3
Critical
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in OMACP on Samsung mobile software before May 2019 allows remote attackers to change network settings via SMS. The OMA Client Provisioning handler accepts unauthenticated binary SMS payloads and presents their settings for installation without identifying the sender or clearly exposing the changes. The recipient must accept the provisioning message, after which an attacker-controlled proxy can redirect device traffic and alter browser or service settings.

The record

CVE
CVE-2019-20606
Published
Mar 24, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1660
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 24, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record 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 buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.8NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:P
9.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1660Phishing

Public exploit references

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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