LiveActive security incident?Get immediate response
CVE Record

CVE-2018-4261: Multiple memory corruption issues were addressed with improved memory handling.

Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

Apple fixed multiple memory corruption issues across several client products in 2018. The bundle does not include CVSS, CWE, or detailed impact text, so urgency depends on whether legacy versions remain in use. Systems at or above the listed fixed releases are the remediation target.

Executive priority

Prioritize as an inventory and legacy-risk issue. If affected versions are still present on business systems, remediate promptly because memory corruption flaws in client software can become high-impact even when public evidence is incomplete.

Technical view

CVE-2018-4261 covers memory corruption issues addressed by improved memory handling. Affected products are versions before iOS 11.4.1, tvOS 11.4.1, Safari 11.1.2, iTunes 12.8 for Windows, and iCloud for Windows 7.6. The provided evidence does not specify the vulnerable component, attack vector, or exploit prerequisites.

Likely exposure

Exposure is most likely on unmanaged or legacy Apple devices, browsers, and Windows hosts running old iTunes or iCloud versions. Modern environments should still verify asset inventory because the affected products span mobile, desktop browser, media, and cloud-sync software.

Exploitation context

The source bundle does not state active exploitation, and KEV is false. It also does not provide exploit availability or attack details. Treat exploitation status as unconfirmed rather than absent.

Researcher notes

The bundle lacks CVSS, CWE, detailed Apple impact language, and component-level detail. Analysis should stay limited to version exposure and vendor-fixed release thresholds unless Apple advisories or CVE records provide additional verified context.

Mitigation direction

  • Upgrade iOS to 11.4.1 or later where applicable.
  • Upgrade tvOS to 11.4.1 or later where applicable.
  • Upgrade Safari to 11.1.2 or later where applicable.
  • Upgrade iTunes for Windows to 12.8 or later.
  • Upgrade iCloud for Windows to 7.6 or later.
  • Check Apple advisories for product-specific support guidance.

Validation and detection

  • Inventory endpoints for affected Apple products and versions.
  • Confirm installed versions meet or exceed the fixed releases.
  • Identify unsupported legacy devices that cannot receive updates.
  • Review vulnerability scanner findings against actual installed versions.
  • Track remediation exceptions for business-owned legacy systems.
Prepared
Confidence
medium
Sources
7

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.

cve · low confidence lookup

CVE-2018-4261 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

0CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aiOS, tvOS, Safari, iTunes for Windows, iCloud for WindowsVersions prior to: iOS 11.4.1, tvOS 11.4.1, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6Listed
Weakness

CWE details

No CWE listed

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