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CVE-2026-86918

Full vulnerability record from the local CVENow database.

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted image may lead to unexpected app termination.

Severity
MEDIUM
CVSS score
4.3 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-10-20 01:17:27.287000
Last modified
2026-11-09 13:46:49.490000
View original CVE JSON
{
  "id": "CVE-2026-86918",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-20T01:17:27.287",
  "lastModified": "2026-11-09T13:46:49.490",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted image may lead to unexpected app termination."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apple",
          "product": "iOS and iPadOS",
          "versions": [
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              "versionType": "custom",
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            }
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        },
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              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "tvOS",
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              "lessThan": "27",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "visionOS",
          "versions": [
            {
              "version": "0",
              "lessThan": "27",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "watchOS",
          "versions": [
            {
              "version": "0",
              "lessThan": "27",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
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        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "LOW"
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          "timestamp": "2026-10-20T14:03:57.696685Z",
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          "role": "CISA Coordinator",
          "version": "2.0.3"
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  "weaknesses": [
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      "type": "Secondary",
      "description": [
        {
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          "value": "CWE-787"
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      ]
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  ],
  "configurations": [
    {
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      "source": "[email protected]",
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}