CVE-2019-8717

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.8 under NVD CVSS v3. EPSS exploit probability: 1.3%, top 33% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, 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: 1%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.

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15, tvOS 13. An application may be able to execute arbitrary code with kernel privileges.

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
1%
EPSS %ILE
67%
KEV
Not listed

Published

December 18, 2019

Last Modified

November 21, 2024

References (4)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× 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.

Showing the most recent 100 of 101 total refreshes for this CVE.

  1. 2026-07-26 14:51 UTCEPSS rescore
  2. 2026-07-25 14:14 UTCEPSS rescore
  3. 2026-07-24 14:14 UTCEPSS rescore
  4. 2026-07-23 14:15 UTCEPSS rescore
  5. 2026-07-23 01:47 UTCEG score recompute
  6. 2026-07-22 22:30 UTCEG score recompute
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  1. 2026-07-09 19:06 UTCEPSS rescore
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  45. 2026-06-10 13:19 UTCEPSS rescore
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  49. 2026-06-07 15:23 UTCEPSS rescore
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  70. 2026-05-27 10:11 UTCEG score recompute
  71. 2026-05-27 10:11 UTCGHSA enrichment
  72. 2026-05-26 13:42 UTCEPSS rescore
  73. 2026-05-26 07:17 UTCEPSS rescore
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  75. 2026-05-26 07:17 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-47479✓ verified
    First seen Oct 9, 2019

    XNU - Remote Double-Free via Data Race in IPComp Input Path

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2019-8717?
CVE-2019-8717 is a high vulnerability published on December 18, 2019. A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15, tvOS 13. An application may be able to execute arbitrary code with kernel privileges.
When was CVE-2019-8717 disclosed?
CVE-2019-8717 was first published in the National Vulnerability Database on December 18, 2019, 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-2019-8717 actively exploited?
CVE-2019-8717 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 32.8% of all scored CVEs.
What is the CVSS score of CVE-2019-8717?
CVE-2019-8717 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2019-8717?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-8717, 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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