CVE-2017-8665

Status: ModifiedHigh (7.8)—Exploit

Severity7.8High · CVSS 3.0

Exploitation probability4.35 %higher than 91% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

The Xamarin.iOS update component on systems running macOS allows an attacker to run arbitrary code as root, aka "Xamarin.iOS Elevation Of Privilege Vulnerability."

CVSS

Base score: 7.8
Version: 3.0
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 4.35 %
Percentile among all scored CVEs: 91
Score date: 10/21/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Xamarin Studio for Mac 6.2.1 (build 3) / 6.3 (build 863) - Local Privilege Escalation (8/14/2017)

Affected technologies (1)

Microsoft — Xamarin.ios

CWEs

CWE-732

References

Show 6 references

Raw JSON (NVD)

Show

{
  "id": "CVE-2017-8665",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
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          "confidentialityImpact": "COMPLETE"
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    "cvssMetricV30": [
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          "integrityImpact": "HIGH",
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          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
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          "vendor": "Microsoft Corporation",
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          "versions": [
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  "published": "2017-08-15T18:29:00.163",
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      "tags": [
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    {
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      "tags": [
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    },
    {
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Xamarin.iOS update component on systems running macOS allows an attacker to run arbitrary code as root, aka \"Xamarin.iOS Elevation Of Privilege Vulnerability.\""
    },
    {
      "lang": "es",
      "value": "El componente de actualización Xamarin.iOS en sistemas con macOS permite que un atacante ejecute código arbitrario como root. Esto también se conoce como \"Xamarin.iOS Elevation Of Privilege Vulnerability\"."
    }
  ],
  "lastModified": "2026-06-17T01:26:45.440",
  "configurations": [
    {
      "nodes": [
        {
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          "cpeMatch": [
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              "versionEndIncluding": "10.11"
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  "sourceIdentifier": "secure@microsoft.com"
}