dbcve.org
IpadosOperating system · Apple

CVE-2021-30921

MEDIUM · 5.5 CVSS v3.1 Published 2021-08-24
Fix available
A fix is available. Upgrade to 14.5 or later.
See remediation →
57/100
Remediation priority · Elevated
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 logic issue was addressed with improved state management. This issue is fixed in iOS 14.5 and iPadOS 14.5. A user's password may be visible onscreen.

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 · high confidence

A logic flaw in iOS and iPadOS causes improper state management of password input fields, resulting in user passwords being visually displayed onscreen when they should be masked or hidden from view.

MitigationUpdate affected iOS and iPadOS devices to version 14.5 or later to apply Apple's fix for this 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
IpadosOperating system
Affected:< 14.5
Iphone OsOperating system
Affected:< 14.5

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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. Check the iOS version
    Navigate to Settings > General > About on the device and locate the 'Version' field
    Affected if The displayed version number is lower than 14.5 (for example, 14.4, 14.3, 13.x, etc.)
  2. Check the iPadOS version if applicable
    If using an iPad, navigate to Settings > General > About and locate the 'Version' field
    Affected if The displayed version number is lower than 14.5 and the device is an iPad running iPadOS

If the device runs iOS or iPadOS version 14.4 or earlier, the password masking logic flaw is present and passwords may be visually exposed in input fields.

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 14.5 or later
Fixed in 14.5
Interim mitigation

Update affected iOS and iPadOS devices to version 14.5 or later to apply Apple's fix for this vulnerability.

Recommended fix High confidence

iOS 14.5 and iPadOS 14.5

  1. Backup your iPhone or iPad to iCloud or your computer before updating
  2. On your iOS device, go to Settings > General > Software Update
  3. Download and install iOS 14.5 (for iPhone) or iPadOS 14.5 (for iPad)
  4. Restart your device if prompted to complete the installation
  5. Verify the update was successful by checking Settings > General > About > Version shows 14.5
Caveat iOS 14.5 introduced App Tracking Transparency and may have app compatibility considerations; backup recommended before upgrading

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

Fix this in Ipados Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing1.0 h
  • Review / QA1.0 h
5.0 hours of engineering $890
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,424.

Scan for this in your stack

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dbcve dependency scanner

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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-2021-30921 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