Iphone OsOperating system · Apple

CVE-2019-8712

CRITICAL · 9.8 CVSS v3.1 Published 2020-10-27
Fix available
A fix is available. Upgrade to 6.0 / 13 or later.
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
A memory corruption issue was addressed with improved memory handling. This issue is fixed in watchOS 6, iOS 13, tvOS 13. An application may be able to execute arbitrary code with system privileges.

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

Memory corruption vulnerability in Apple watchOS, iOS, and tvOS allowing an application to execute arbitrary code with system privileges. Fixed in watchOS 6, iOS 13, and tvOS 13 through improved memory handling.

MitigationApply OS updates: upgrade to watchOS 6+, iOS 13+, or tvOS 13+ to remediate the vulnerability.

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
Iphone OsOperating system
Affected:< 13.1
TvosOperating system
Affected:< 13
WatchosOperating system
Affected:< 6.0

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:3.1/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 your Apple device type
    Determine whether you are using an iPhone (iOS), Apple TV (tvOS), or Apple Watch (watchOS) device
    Affected if Device runs one of the affected operating systems
  2. Check installed iOS version on iPhone
    On iPhone, go to Settings > General > About and note the version number shown next to 'Version'
    Affected if iOS version is lower than 13.1 (for example, 13.0, 12.x, or earlier)
  3. Check installed tvOS version on Apple TV
    On Apple TV, go to Settings > General > About and note the version number shown next to 'Version'
    Affected if tvOS version is lower than 13 (for example, 12.x or earlier)
  4. Check installed watchOS version on Apple Watch
    On Apple Watch, open the Watch app on paired iPhone, go to General > About, and note the version number next to 'Version'; or on Apple Watch go to Settings > General > About
    Affected if watchOS version is lower than 6.0 (for example, 5.x or earlier)

You are affected if your device runs iOS < 13.1, tvOS < 13, or watchOS < 6.0, as these versions contain the vulnerable memory handling code that could allow an application to execute arbitrary code with system privileges.

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.

dbcve · scoped
Upgrade available Upgrade to 6.0 / 13 / 13.1 or later
Fixed in 6.01313.1
Interim mitigation

Apply OS updates: upgrade to watchOS 6+, iOS 13+, or tvOS 13+ to remediate the vulnerability.

Recommended fix High confidence

iOS 13.1 or later (iPhone/iPad); tvOS 13 or later (Apple TV); watchOS 6.0 or later (Apple Watch)

  1. Identify the Apple device type (iPhone, Apple TV, or Apple Watch) affected by this vulnerability
  2. Check the current OS version on the device
  3. For iPhone/iPad: Upgrade to iOS 13.1 or later via Settings > General > Software Update
  4. For Apple TV: Upgrade to tvOS 13 or later via Settings > System > Software Updates
  5. For Apple Watch: Upgrade to watchOS 6.0 or later via the Watch app on iPhone > General > Software Update
  6. Restart the device after the update completes
  7. Verify the new OS version is at or above the fixed release (iOS 13.1+, tvOS 13+, watchOS 6.0+)

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Iphone Os Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2019-8712 — 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-2019-8712 in production — separate from our analysis above.

No notes yet

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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