Galaxy S6 FirmwareOperating system · Samsung

CVE-2016-2566

CRITICAL · 9.8 CVSS v3.0 Published 2017-04-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Samsung SecEmailSync on SM-G920F build G920FXXU2COH2 (Galaxy S6) devices has SQL injection, aka SVE-2015-5081.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

SQL injection vulnerability in Samsung SecEmailSync component on Galaxy S6 (SM-G920F) devices running build G920FXXU2COH2. The vulnerability allows injection of malicious SQL commands, potentially enabling unauthorized access to email data, authentication bypass, or in some cases, command execution depending on database configuration.

MitigationApply available Samsung security patches for the affected device build; if no patch is available, consider disabling email synchronization or using alternative email clients until a fix is released.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Galaxy S6 FirmwareOperating system
Affected:= g920fxxu2coh2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify device model number
    Check if the device is a Samsung Galaxy S6 with model number SM-G920F. This can be found in Settings > About Phone > Model Number, or by checking the device physically for the SM-G920F designation.
    Affected if The device model is not SM-G920F - if it is a different Galaxy S6 variant or different Samsung device, this specific CVE does not apply.
  2. Check firmware build version
    Navigate to Settings > About Phone > Build Number, or use ADB command: adb shell getprop ro.build.display.id. Verify if the build version is exactly G920FXXU2COH2.
    Affected if The build version is exactly G920FXXU2COH2 - only this precise firmware build is affected by this vulnerability.
  3. Verify SecEmailSync component presence
    Check if the SecEmailSync application is installed on the device. This can be done via Settings > Applications > Application Manager, or using ADB command: adb shell pm list packages | grep -i secemail. Samsung SecEmailSync is typically a pre-installed system application.
    Affected if The SecEmailSync component is present and the device meets the model and build criteria above - the vulnerability exists in this specific component on this specific firmware.

The device is affected only if it is a Samsung Galaxy S6 (SM-G920F) running firmware build G920FXXU2COH2 with the SecEmailSync component present; any other model or build version is not affected by this specific CVE.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply available Samsung security patches for the affected device build; if no patch is available, consider disabling email synchronization or using alternative email clients until a fix is released.

Fix this in Galaxy S6 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA3.0 h
21.0 hours of engineering $3,680
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,888.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2016-2566 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2016-2566 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data