CVE-2019-1476

HIGHNVD 7.87.8—Elevated

7.8

An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1483.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 97.2%
KEV: Not listed

Published

December 10, 2019

Last Modified

November 21, 2024

References (4)

secure@microsofthttp://packetstormsecurity.com/files/155653/AppXSvc-17763-Arbitrary-File-Overwrite.html
secure@microsofthttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1476
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/155653/AppXSvc-17763-Arbitrary-File-Overwrite.html
af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1476

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Microsoft MSRCCVE-2019-14762019-12-10
Windows Elevation of Privilege Vulnerability

Data Freshness Timeline

(refreshed 9× in last 7d / 20× 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.

2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:42 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore

Publicly available exploits

(2 references)

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

Exploit-DBEDB-47768
First seen Dec 11, 2019
AppXSvc 17763 - Arbitrary File Overwrite (DoS)
Open source ↗
GitHub PoCsgabe/CVE-2019-1476
First seen Dec 5, 2019
AppXSvc Arbitrary File Overwrite DoS
Open source ↗

Frequently asked(5)

What is CVE-2019-1476?

CVE-2019-1476 is a high vulnerability published on December 10, 2019. An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1483.

When was CVE-2019-1476 disclosed?

CVE-2019-1476 was first published in the National Vulnerability Database on December 10, 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-2019-1476 actively exploited?

CVE-2019-1476 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-1476?

CVE-2019-1476 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2019-1476?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-1476, 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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