November 13, 2026 Follow Egret
CVE-2018-4344 · CVE record: PUBLISHED

Apple Multiple Products Memory Corruption Vulnerability

n/a iOS, macOS, tvOS, watchOS

A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.

Exploitation evidence

Known exploited · CISA KEV listed

Added 2022-06-27. Ransomware campaign use: Unknown.

CISA required action: Apply updates per vendor instructions.

CISA due date: 2022-07-18. This is the catalog’s deadline, not an assessment of your organization’s exposure.

KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗

Reported products and versions

n/a / iOS, macOS, tvOS, watchOS

Default status: Not specified

  • affected: Versions prior to: iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5

Fixes and workarounds

No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.

Sources and related reporting

CVE Program record ↗ · Download tracked evidence as JSON

Observed change timeline

History begins when Egret first downloads each source. It is not the complete upstream CVE history.

12 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-12",
  "epss": 0.02374,
  "percentile": 0.84088
}
10 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-10",
  "epss": 0.02374,
  "percentile": 0.83987
}
09 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-09",
  "epss": 0.02374,
  "percentile": 0.83967
}
08 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-08",
  "epss": 0.02374,
  "percentile": 0.83959
}
07 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-07",
  "epss": 0.02374,
  "percentile": 0.83946
}
07 Nov 2026, 00:20 Jerusalem · CVE Program record changed

Stored CNA snapshot at this observation.

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  "containers": {
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      {
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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT209107"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT209106"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT209139"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.apple.com/kb/HT209108"
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        ],
        "title": "CVE Program Container"
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      {
        "metrics": [
          {
            "cvssV3_1": {
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              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2018-4344",
                "options": [
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                    "Exploitation": "active"
                  },
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                  },
                  {
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-29T17:43:16.645307Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          },
          {
            "other": {
              "content": {
                "dateAdded": "2022-06-27",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4344"
              },
              "type": "kev"
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          }
        ],
        "problemTypes": [
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            "descriptions": [
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                "cweId": "CWE-119",
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        ],
        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
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            "tags": [
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            "value": "CVE-2018-4344 added to CISA KEV"
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        ],
        "title": "CISA ADP Vulnrichment"
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    "cna": {
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          "vendor": "n/a",
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      "providerMetadata": {
        "dateUpdated": "2019-04-03T17:43:15.000Z",
        "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "shortName": "apple"
      },
      "references": [
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          "url": "https://support.apple.com/kb/HT209107"
        },
        {
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          "url": "https://support.apple.com/kb/HT209106"
        },
        {
          "tags": [
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          "url": "https://support.apple.com/kb/HT209139"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support.apple.com/kb/HT209108"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "product-security@apple.com",
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          "STATE": "PUBLIC"
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                      "version": {
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        "description": {
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        },
        "problemtype": {
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        "references": {
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              "refsource": "MISC",
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            },
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  "cveMetadata": {
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    "datePublished": "2019-04-03T17:43:15.000Z",
    "dateReserved": "2018-01-02T00:00:00.000Z",
    "dateUpdated": "2025-10-21T23:45:40.920Z",
    "state": "PUBLISHED"
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06 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-06",
  "epss": 0.02374,
  "percentile": 0.83922
}
05 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-05",
  "epss": 0.02374,
  "percentile": 0.8391
}
04 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-04",
  "epss": 0.02374,
  "percentile": 0.83897
}
03 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-03",
  "epss": 0.02374,
  "percentile": 0.83868
}
03 Nov 2026, 02:22 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-02",
  "epss": 0.02374,
  "percentile": 0.83849
}
03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed

Stored KEV snapshot at this observation.

{
  "cveID": "CVE-2018-4344",
  "cwes": [
    "CWE-119"
  ],
  "dateAdded": "2022-06-27",
  "dueDate": "2022-07-18",
  "forensicTriage": "No",
  "knownRansomwareCampaignUse": "Unknown",
  "notes": "https://nvd.nist.gov/vuln/detail/CVE-2018-4344",
  "product": "Multiple Products",
  "requiredAction": "Apply updates per vendor instructions.",
  "shortDescription": "Apple iOS, macOS, tvOS, and watchOS contain a memory corruption vulnerability which can allow for code execution.",
  "vendorProject": "Apple",
  "vulnerabilityName": "Apple Multiple Products Memory Corruption Vulnerability"
}
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