CVE-2018-4087

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
7.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Exploit-DB (verified), public exploit)
CISA-KEV: Not listedEPSS PROB: 7%CVSS: 7.8Exploit: Exploit-DB (verified) · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An issue was discovered in certain Apple products. iOS before 11.2.5 is affected. tvOS before 11.2.5 is affected. watchOS before 4.2.2 is affected. The issue involves the "Core Bluetooth" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
66(Track)
EG Risk 66/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
7%
EPSS %ILE
94%
KEV
Not listed

Published

April 3, 2018

Last Modified

November 21, 2024

References (14)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 4× in last 7d / 22× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 126 total refreshes for this CVE.

  1. 2026-09-06 13:44 UTCEPSS rescore
  2. 2026-09-04 13:56 UTCEPSS rescore
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  1. 2026-08-04 15:05 UTCEPSS rescore
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  8. 2026-07-28 15:32 UTCEPSS rescore
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  17. 2026-07-23 01:36 UTCEG score recompute
  18. 2026-07-22 22:16 UTCEG score recompute
  19. 2026-07-22 14:05 UTCEPSS rescore
  20. 2026-07-21 15:22 UTCEPSS rescore
  21. 2026-07-20 17:04 UTCEPSS rescore
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  23. 2026-07-19 14:28 UTCEPSS rescore
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  31. 2026-07-13 22:27 UTCEPSS rescore
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  44. 2026-07-01 15:03 UTCEPSS rescore
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  46. 2026-06-30 23:20 UTCEPSS rescore
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  48. 2026-06-29 14:03 UTCEPSS rescore
  49. 2026-06-28 14:04 UTCEPSS rescore
  50. 2026-06-28 04:53 UTCEPSS rescore
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  52. 2026-06-27 03:06 UTCEPSS rescore
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  54. 2026-06-25 13:47 UTCEPSS rescore
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  56. 2026-06-24 14:02 UTCEPSS rescore
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  58. 2026-06-23 21:30 UTCEPSS rescore
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  62. 2026-06-21 01:57 UTCEPSS rescore
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  64. 2026-06-19 19:23 UTCEPSS rescore
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  66. 2026-06-18 17:50 UTCEPSS rescore
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  68. 2026-06-17 17:50 UTCEPSS rescore
  69. 2026-06-16 17:50 UTCEPSS rescore
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  72. 2026-06-14 23:15 UTCEPSS rescore
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  74. 2026-06-13 22:58 UTCEPSS rescore
  75. 2026-06-12 23:09 UTCEPSS rescore

Publicly available exploits

(4 references)

Working exploit code is in the public domain (3 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCjoedaguy/Exploit11.2
    First seen Mar 8, 2018

    Exploit iOS 11.2.x by ZIMPERIUM and semi-completed by me. Sandbox escapes on CVE-2018-4087.

    Open source ↗
  • Exploit-DBEDB-44215✓ verified
    First seen Feb 28, 2018

    Apple iOS 11.2.5 / watchOS 4.2.2 / tvOS 11.2.5 - 'bluetoothd' Memory Corruption

    Open source ↗
  • GitHub PoCMTJailed/UnjailMe
    First seen Feb 28, 2018

    A sandbox escape based on the proof-of-concept (CVE-2018-4087) by Rani Idan (Zimperium)

    Open source ↗
  • GitHub PoCrani-i/bluetoothdPoC
    First seen Feb 21, 2018

    CVE-2018-4087 PoC

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-4087?
CVE-2018-4087 is a high vulnerability published on April 3, 2018. An issue was discovered in certain Apple products. iOS before 11.2.5 is affected. tvOS before 11.2.5 is affected. watchOS before 4.2.2 is affected. The issue involves the "Core Bluetooth" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service…
When was CVE-2018-4087 disclosed?
CVE-2018-4087 was first published in the National Vulnerability Database on April 3, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-4087 actively exploited?
CVE-2018-4087 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7% probability of exploitation in the next 30 days, which ranks it in the top 6.1% of all scored CVEs.
What is the CVSS score of CVE-2018-4087?
CVE-2018-4087 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2018-4087?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-4087, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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