CVE-2016-7661

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-17. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.8Exploit: NoneExposed: 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 10.2 is affected. macOS before 10.12.2 is affected. The issue involves the "Power Management" component. It allows local users to gain privileges via unspecified vectors related to Mach port name references.

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
62.4%
KEV
Not listed

Published

February 20, 2017

Last Modified

May 13, 2026

References (12)

Data Freshness Timeline

(refreshed 12× in last 7d / 41× 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.

  1. 2026-07-24 14:13 UTCEPSS rescore
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  3. 2026-07-23 01:24 UTCEG score recompute
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Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-40958✓ verified
    First seen Dec 22, 2016

    Apple macOS 10.12.1 / iOS < 10.2 - powerd Arbitrary Port Replacement

    Open source ↗
  • Exploit-DBEDB-40931✓ verified
    First seen Dec 16, 2016

    Apple macOS 10.12 16A323 XNU Kernel / iOS 10.1.1 - 'set_dp_control_port' Lack of Locking Use-After-Free

    Open source ↗

Frequently asked(5)

What is CVE-2016-7661?
CVE-2016-7661 is a high vulnerability published on February 20, 2017. An issue was discovered in certain Apple products. iOS before 10.2 is affected. macOS before 10.12.2 is affected. The issue involves the "Power Management" component. It allows local users to gain privileges via unspecified vectors related to Mach port name references.
When was CVE-2016-7661 disclosed?
CVE-2016-7661 was first published in the National Vulnerability Database on February 20, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-7661 actively exploited?
CVE-2016-7661 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 62.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-7661?
CVE-2016-7661 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2016-7661?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-7661, 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.

Dependency Blast Radius

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