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CVE Record

CVE-2026-20663: The issue was resolved by sanitizing logging.

The issue was resolved by sanitizing logging. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3. An app may be able to enumerate a user's installed apps.

LowCVSS 3.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

CVE-2026-20663 is a low-severity Apple iOS/iPadOS privacy issue. A local app may be able to enumerate a user’s installed apps. Apple says the issue was resolved by sanitizing logging and fixed in iOS/iPadOS 18.7.5 and 26.3.

Executive priority

Treat this as routine patching, not an emergency. The business risk is privacy exposure from installed-app enumeration, especially on managed or sensitive-user devices. Include it in the next Apple update cycle unless organizational risk tolerance requires faster mobile patching.

Technical view

The CVE is mapped to CWE-532, insertion of sensitive information into log files. CVSS 3.1 is 3.3: local attack vector, low complexity, low privileges, no user interaction, and low confidentiality impact. No integrity or availability impact is listed.

Likely exposure

Exposure is limited to Apple iOS and iPadOS devices running affected versions before 18.7.5 or 26.3. The vulnerability requires a local app context with low privileges, so risk depends on managed devices allowing untrusted or risky apps.

Exploitation context

The provided sources do not indicate active exploitation, public exploit availability, or CISA KEV listing. The impact described is app enumeration, which can support privacy profiling but is not described as code execution, data theft, or device compromise.

Researcher notes

The public record is sparse. Apple’s description attributes the issue to logging and says sanitization fixed it. No component name, affected version range, proof of concept, or detailed trigger conditions are provided in the supplied sources.

Mitigation direction

  • Update iPhones and iPads to iOS/iPadOS 18.7.5 or 26.3 where applicable.
  • Prioritize managed devices that allow broad app installation or handle sensitive user populations.
  • Review Apple security update pages for model-specific applicability and deployment guidance.
  • Limit installation of untrusted apps through MDM or organizational policy where feasible.

Validation and detection

  • Inventory iOS and iPadOS versions across managed devices.
  • Confirm devices report iOS/iPadOS 18.7.5, 26.3, or later applicable builds.
  • Check MDM compliance dashboards for devices below the fixed versions.
  • Review Apple advisories 126346 and 126347 for affected platform coverage.
Prepared
Confidence
high
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-532: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2026-20663 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Low
CVSS
3.3 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
3.3CVSS 3.1LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N1.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

3.3Low
CVSS 3.1 vector shape for CVE-2026-20663Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
AppleiOS and iPadOS0, 0Listed
Weakness

CWE details

CWE-532

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-532 · source CWE mapping

Insertion of Sensitive Information into Log File

Insertion of Sensitive Information into Log File represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs