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CVE-2026-43668

📛 CVE Title

CVE-2026-43668

⬇ Download JSON ⚠ View as Threat

Description

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

Overview

State
PUBLISHED
Assigner (CNA)
apple
CVSS severity
high
CVSS score
CVSS 7.5 / 10 7.5 7.5 / 10
CVSS vector
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Effective score
7.5 / 10 HIGH source: CNA overview
CWE(s)
—
Reserved
2026-05-02
Published
2026-05-11 22:08 UTC
Last updated
2026-05-12 20:06 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/43xxx/CVE-2026-43668.json
Linked Threat
CVE-2026-43668 — CVE-2026-43668

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published
2026-05-11 21:19:02 UTC
NVD last modified
2026-05-13 14:06:28 UTC
NVD CVSS v3.1
CVSS 7.5 / 10 7.5 7.5 / 10 HIGH source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore
3.9 / 10
Impact subscore
3.6 / 10
EPSS score
0.0016 (probability of exploitation in next 30 days)
EPSS percentile
36.72% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

NVD-assigned CWE(s): CWE-416 (differs from the CNA list above)

NVD / KEV / EPSS data refreshed 2026-05-25 08:49 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID
EUVD-2026-29308
Assigner
apple
Published
May 11, 2026, 8:08:40 PM
Updated
May 12, 2026, 6:06:48 PM
EUVD base score (CVSS 3.1)
7.5 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EUVD-reported EPSS
0.1600
Vendors
Apple
Products
iOS and iPadOS (0 <26.5)
iOS and iPadOS (0 <18.7.9)
visionOS (0 <26.5)
macOS (0 <15.7.7)
macOS (0 <26.5)
watchOS (0 <26.5)
macOS (0 <14.8.7)
tvOS (0 <26.5)

ENISA description: A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

EUVD references (8)

Affected products (5)
VendorProductVersionsPlatforms
Apple iOS and iPadOS 0 (affected), 0 (affected) —
Apple macOS 0 (affected), 0 (affected), 0 (affected) —
Apple tvOS 0 (affected) —
Apple visionOS 0 (affected) —
Apple watchOS 0 (affected) —

Affected products — CPE 2.3 (6) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

Vendor references (8)

References embedded in the original CVE record by the assigning CNA.

MITRE references (8) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

Web references (7)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

NVD-tagged references (8)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

Remediations (17)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

  • CISA Warns of Exploited Microsoft Defender 0-Day Flaws
    web:cyberpress.org

    The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .

    2026-05-23 20:59 UTC
  • Patch Tuesday, May 2026 Edition - Krebs on Security
    web:krebsonsecurity.com

    Microsoft expects that exploitation is more likely. May's Patch Tuesday is a welcome respite from April, which saw Microsoft fix a near-record 167 security flaws.

    2026-05-23 20:59 UTC
  • Nvd - Cve-2026-43660
    web:nvd.nist.gov

    An official website of the United States government Here's how you know

    2026-05-23 20:59 UTC
  • Security Update Guide - Microsoft
    web:portal.msrc.microsoft.com

    The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

    2026-05-23 20:59 UTC
  • April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
    web:www.crowdstrike.com

    Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

    2026-05-23 20:59 UTC
  • Microsoft May 2026 Patch Tuesday: Many fixes, but no zero-days
    web:www.helpnetsecurity.com

    Microsoft has marked May 2026 Patch Tuesday by releasing fixes for 120+ CVE -numbered vulnerabilities, none of which are actively exploited.

    2026-05-23 20:59 UTC
  • Oracle Critical Patch Update Advisory - April 2026
    web:www.oracle.com

    This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

    2026-05-23 20:59 UTC
  • CVE-2026-43668 - High Vulnerability - TheHackerWire
    web:www.thehackerwire.com

    How severe is CVE-2026-43668 ? What Apple products are affected by CVE-2026-43668 ? How do I fix or mitigate CVE-2026-43668 ? When was CVE-2026-43668 disclosed?

    2026-05-23 20:59 UTC
  • Windows 11 April 2026 Update tested: What's new, improved and fixed
    web:www.windowslatest.com

    Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.

    2026-05-23 20:59 UTC
  • Patch Tuesday May 2026: Security Updates & CVE Analysis
    web:zecurit.com

    Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

    2026-05-23 20:59 UTC
  • Security Advisory Bulletin 064 | Ubiquiti Community
    web:community.ui.com

    Published: May 21, 2026 Updated: May 22, 2026 Version: 1.1 Revision: 1.1 Summary 1 of 5 A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. Affected Products: UniFi OS Server (Version 5.0.6 and earlier) Mitigation : Update your UniFi OS Server to Version 5.0.8 or later ...

    2026-05-26 02:52 UTC
  • Security Update Guide - Microsoft
    web:msrc.microsoft.com

    The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

    2026-05-26 02:52 UTC
  • Google Workspace Admin Help
    web:support.google.com

    Official Google Workspace Admin Help Center where you can find tips and tutorials on using Google Workspace Admin and other answers to frequently asked questions.

    2026-05-26 02:52 UTC
  • Landing Page | ServiceNow Common Vulnerabilities & Exposures (CVE ...
    web:support.servicenow.com

    Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...

    2026-05-26 02:52 UTC
  • "Error 1328. Error applying patch to file C:\Config.Msi ... - Autodesk
    web:www.autodesk.com

    When installing a Revit update, the following message appears: Error 1328.Error applying patch to file C:\Config.Msi\xxx.tmp. It has probably been updated by other means, and can no longer be modified by this patch .

    2026-05-26 02:52 UTC
  • Guidance for Industry - U.S. Food and Drug Administration
    web:www.fda.gov

    Risk Evaluation and Mitigation Strategies: Modifications and Revisions Guidance for Industry Additional copies are available from:

    2026-05-26 02:52 UTC
  • Patch CVE-2023-23397 Immediately: What You Need To Know and Do
    web:www.trendmicro.com

    Update as of 03/22/3023 2:50PM PHT: Updated the prevention and mitigation section for an additional step. CVE -2023-23397 is a critical privilege elevation/authentication bypass vulnerability in Outlook, released as part of the March Patch Tuesday set of fixes.

    2026-05-26 02:52 UTC

AI Forensic Analysis

Only Available for Registered Users. Sign in to view.

Raw JSON

The full cvelistV5 record. Download as CVE-2026-43668.json.

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-43668",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-12T18:06:44.920541Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-12T18:06:48.480Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "iOS and iPadOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "18.7.9",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "26.5",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "macOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "14.8.7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "15.7.7",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "26.5",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "tvOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "26.5",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "visionOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "26.5",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "watchOS",
          "vendor": "Apple",
          "versions": [
            {
              "lessThan": "26.5",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "A remote attacker may be able to cause unexpected system termination or corrupt kernel memory",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:08:40.859Z",
        "orgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
        "shortName": "apple"
      },
      "references": [
        {
          "url": "https://support.apple.com/en-us/127110"
        },
        {
          "url": "https://support.apple.com/en-us/127111"
        },
        {
          "url": "https://support.apple.com/en-us/127115"
        },
        {
          "url": "https://support.apple.com/en-us/127116"
        },
        {
          "url": "https://support.apple.com/en-us/127117"
        },
        {
          "url": "https://support.apple.com/en-us/127118"
        },
        {
          "url": "https://support.apple.com/en-us/127119"
        },
        {
          "url": "https://support.apple.com/en-us/127120"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c",
    "assignerShortName": "apple",
    "cveId": "CVE-2026-43668",
    "datePublished": "2026-05-11T20:08:40.859Z",
    "dateReserved": "2026-05-01T22:46:21.640Z",
    "dateUpdated": "2026-05-12T18:06:48.480Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}