# CVE-2024-27820: CVE-2024-27820

Status: published. Published: 2024-06-10. Updated: 2026-11-03.

The issue was addressed with improved memory handling. This issue is fixed in Safari 17.5, iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, tvOS 17.5, visionOS 1.2, watchOS 10.5. Processing web content may lead to arbitrary code execution.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Apple / Safari: ≥ 0; < 17.5 (affected, custom). Source: CNA: apple
- Apple / iOS and iPadOS: ≥ 0; < 16.7.8 (affected, custom); ≥ 0; < 17.5 (affected, custom). Source: CNA: apple
- Apple / macOS: ≥ 0; < 14.5 (affected, custom). Source: CNA: apple
- Apple / tvOS: ≥ 0; < 17.5 (affected, custom). Source: CNA: apple
- Apple / visionOS: ≥ 0; < 1.2 (affected, custom). Source: CNA: apple
- Apple / watchOS: ≥ 0; < 10.5 (affected, custom). Source: CNA: apple
- apple / iphone_os: ≥ 0; < 17.5 (affected, custom); ≥ 0; < 16.7 (affected, custom). Source: ADP: CISA-ADP
- apple / ipad_os: ≥ 0; < 17.5 (affected, custom); ≥ 0; < 16.7 (affected, custom). Source: ADP: CISA-ADP
- apple / mac_os: ≥ 0; < 14.5 (affected, custom). Source: ADP: CISA-ADP
- apple / visionos: ≥ 0; < 1.2 (affected, custom). Source: ADP: CISA-ADP
- apple / watchos: ≥ 0; < 10.5 (affected, custom). Source: ADP: CISA-ADP
- apple / safari: ≥ 0; < 17.5 (affected, custom). Source: ADP: CISA-ADP
- apple / tvos: ≥ 0; < 17.5 (affected, custom). Source: ADP: CISA-ADP

## NVD configuration conditions

Affected CPE matches depend on the following AND/OR and negation conditions:

```json
[
  {
    "negate": false,
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "17.5",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "16.7.8",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "17.5",
            "versionStartIncluding": "17.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "16.7.8",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "17.5",
            "versionStartIncluding": "17.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "14.5",
            "versionStartIncluding": "14.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "17.5",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "1.2",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "10.5",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ],
    "operator": "OR"
  }
]
```

## Severity and prioritization

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H; source: ADP: CISA-ADP

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H; source: NVD: nvd@nist.gov

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H; source: NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- CISA KEV: No listing in collected sources

- EPSS: 1.02% as of 2026-11-03; percentile 63.34%

- SSVC: exploitation none; automatable yes; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-119

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://support.apple.com/en-us/120896 (CNA: apple)

- https://support.apple.com/en-us/120898 (CNA: apple)

- https://support.apple.com/en-us/120901 (CNA: apple)

- https://support.apple.com/en-us/120902 (CNA: apple)

- https://support.apple.com/en-us/120903 (CNA: apple)

- https://support.apple.com/en-us/120905 (CNA: apple)

- https://support.apple.com/en-us/120906 (CNA: apple)

- https://support.apple.com/en-us/HT214101 (ADP: CVE; x_transferred)

- https://support.apple.com/en-us/HT214100 (ADP: CVE; x_transferred)

- https://support.apple.com/en-us/HT214106 (ADP: CVE; x_transferred)

- https://support.apple.com/en-us/HT214108 (ADP: CVE; x_transferred)

- https://support.apple.com/en-us/HT214104 (ADP: CVE; x_transferred)

- https://support.apple.com/en-us/HT214103 (ADP: CVE; x_transferred)

- https://support.apple.com/en-us/HT214102 (ADP: CVE; x_transferred)

- http://seclists.org/fulldisclosure/2024/Jun/5 (ADP: CVE; x_transferred)

- https://support.apple.com/kb/HT214108 (ADP: CVE)

- https://support.apple.com/kb/HT214106 (ADP: CVE)

- https://support.apple.com/kb/HT214104 (ADP: CVE)

- https://support.apple.com/kb/HT214102 (ADP: CVE)

- https://support.apple.com/kb/HT214100 (ADP: CVE)

- https://support.apple.com/en-us/120896 (product-security@apple.com)

- https://support.apple.com/en-us/120898 (product-security@apple.com)

- https://support.apple.com/en-us/120901 (product-security@apple.com)

- https://support.apple.com/en-us/120902 (product-security@apple.com)

- https://support.apple.com/en-us/120903 (product-security@apple.com)

- https://support.apple.com/en-us/120905 (product-security@apple.com)

- https://support.apple.com/en-us/120906 (product-security@apple.com)

- http://seclists.org/fulldisclosure/2024/Jun/5 (af854a3a-2127-422b-91ae-364da2661108; Mailing List, Third Party Advisory)

- https://support.apple.com/en-us/HT214100 (af854a3a-2127-422b-91ae-364da2661108; Vendor Advisory)

- https://support.apple.com/en-us/HT214101 (af854a3a-2127-422b-91ae-364da2661108; Vendor Advisory)

- https://support.apple.com/en-us/HT214102 (af854a3a-2127-422b-91ae-364da2661108; Vendor Advisory)

- https://support.apple.com/en-us/HT214103 (af854a3a-2127-422b-91ae-364da2661108; Vendor Advisory)

- https://support.apple.com/en-us/HT214104 (af854a3a-2127-422b-91ae-364da2661108; Vendor Advisory)

- https://support.apple.com/en-us/HT214106 (af854a3a-2127-422b-91ae-364da2661108; Vendor Advisory)

- https://support.apple.com/en-us/HT214108 (af854a3a-2127-422b-91ae-364da2661108; Vendor Advisory)

- https://support.apple.com/kb/HT214100 (af854a3a-2127-422b-91ae-364da2661108)

- https://support.apple.com/kb/HT214102 (af854a3a-2127-422b-91ae-364da2661108)

- https://support.apple.com/kb/HT214104 (af854a3a-2127-422b-91ae-364da2661108)

- https://support.apple.com/kb/HT214106 (af854a3a-2127-422b-91ae-364da2661108)

- https://support.apple.com/kb/HT214108 (af854a3a-2127-422b-91ae-364da2661108)

## Provenance

- CNA: apple: https://www.cve.org/CVERecord?id=CVE-2024-27820; retrieved 2026-11-04; source updated 2026-11-03

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-27820; retrieved 2026-11-04; source updated 2026-11-03

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2024-27820; retrieved 2026-11-03; source updated Not reported

Revision: 34417e9989171d4ee7f8531bba590b4d4204f8efaaf078b96e24009142eeef96

Canonical: https://y2.dev/cve/CVE-2024-27820

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