CVE-2019-0841

CRITICALNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-15), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 41%CVSS: 7.8Exploit: cisa kev · ssvc active · kev ransomware · Metasploit · Exploit-DB (verified) · epss top5pct · public exploitExposed: 0

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

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-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0836.

CVSS v3
7.8
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
41%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

April 9, 2019

Last Modified

October 29, 2025

Advisory Details (8)

Auto-updated Jun 3, 2026
🔬 Proof of concept available. Patch available. Sources: microsoft.
generic

Packet Storm

http://packetstormsecurity.com/files/153009/Internet-Explorer-JavaScript-Privilege-Escalation.html
generic

Packet Storm

http://packetstormsecurity.com/files/152463/Microsoft-Windows-AppX-Deployment-Service-Privilege-Escalation.html
generic

ZDI-19-360 | Zero Day Initiative

https://www.zerodayinitiative.com/advisories/ZDI-19-360/
generic🟡 PoC Available

Microsoft Windows - AppX Deployment Service Privilege Escalation - Windows local Exploit

https://www.exploit-db.com/exploits/46683/
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0841
generic

Packet Storm

http://packetstormsecurity.com/files/153642/AppXSvc-Hard-Link-Privilege-Escalation.html
generic

Packet Storm

http://packetstormsecurity.com/files/153215/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html
generic

Packet Storm

http://packetstormsecurity.com/files/153114/Microsoft-Windows-AppX-Deployment-Service-Local-Privilege-Escalation.html

Weakness Classification(1)

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

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.

Data Freshness Timeline

(refreshed 105× in last 7d / 432× 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 1,528 total refreshes for this CVE.

  1. 2026-09-19 22:08 UTCVendor advisory
  2. 2026-09-19 22:08 UTCGHSA enrichment
  3. 2026-09-19 18:22 UTCEG score recompute
  4. 2026-09-19 18:22 UTCVendor advisory
  5. 2026-09-19 18:22 UTCGHSA enrichment
  6. 2026-09-19 15:36 UTCEPSS rescore
  7. 2026-09-19 14:37 UTCVendor advisory
  8. 2026-09-19 14:37 UTCGHSA enrichment
  9. 2026-09-19 10:52 UTCVendor advisory
  10. 2026-09-19 10:52 UTCGHSA enrichment
  11. 2026-09-19 07:07 UTCVendor advisory
  12. 2026-09-19 07:07 UTCGHSA enrichment
  13. 2026-09-19 03:21 UTCVendor advisory
  14. 2026-09-19 03:21 UTCGHSA enrichment
  15. 2026-09-18 23:36 UTCVendor advisory
  16. 2026-09-18 23:36 UTCGHSA enrichment
  17. 2026-09-18 19:49 UTCEG score recompute
  18. 2026-09-18 19:49 UTCVendor advisory
  19. 2026-09-18 19:49 UTCGHSA enrichment
  20. 2026-09-18 19:22 UTCEPSS rescore
  21. 2026-09-18 19:20 UTCCISA KEV update
  22. 2026-09-18 16:04 UTCVendor advisory
  23. 2026-09-18 16:03 UTCGHSA enrichment
  24. 2026-09-18 14:15 UTCCISA KEV update
  25. 2026-09-18 12:14 UTCVendor advisory
Show 75 more
  1. 2026-09-18 12:13 UTCGHSA enrichment
  2. 2026-09-18 08:27 UTCVendor advisory
  3. 2026-09-18 08:27 UTCGHSA enrichment
  4. 2026-09-18 04:42 UTCVendor advisory
  5. 2026-09-18 04:42 UTCGHSA enrichment
  6. 2026-09-18 00:57 UTCVendor advisory
  7. 2026-09-18 00:57 UTCGHSA enrichment
  8. 2026-09-17 21:12 UTCEG score recompute
  9. 2026-09-17 21:12 UTCVendor advisory
  10. 2026-09-17 21:12 UTCGHSA enrichment
  11. 2026-09-17 19:22 UTCEPSS rescore
  12. 2026-09-17 17:27 UTCVendor advisory
  13. 2026-09-17 17:27 UTCGHSA enrichment
  14. 2026-09-17 12:45 UTCVendor advisory
  15. 2026-09-17 12:44 UTCGHSA enrichment
  16. 2026-09-17 08:55 UTCVendor advisory
  17. 2026-09-17 08:55 UTCGHSA enrichment
  18. 2026-09-17 05:10 UTCVendor advisory
  19. 2026-09-17 05:10 UTCGHSA enrichment
  20. 2026-09-17 01:25 UTCVendor advisory
  21. 2026-09-17 01:25 UTCGHSA enrichment
  22. 2026-09-16 21:40 UTCVendor advisory
  23. 2026-09-16 21:40 UTCGHSA enrichment
  24. 2026-09-16 17:52 UTCVendor advisory
  25. 2026-09-16 17:52 UTCGHSA enrichment
  26. 2026-09-16 14:10 UTCCISA KEV update
  27. 2026-09-16 14:08 UTCEG score recompute
  28. 2026-09-16 14:08 UTCVendor advisory
  29. 2026-09-16 14:08 UTCGHSA enrichment
  30. 2026-09-16 10:23 UTCVendor advisory
  31. 2026-09-16 10:23 UTCGHSA enrichment
  32. 2026-09-16 06:37 UTCEG score recompute
  33. 2026-09-16 06:37 UTCVendor advisory
  34. 2026-09-16 06:37 UTCGHSA enrichment
  35. 2026-09-16 02:53 UTCVendor advisory
  36. 2026-09-16 02:53 UTCGHSA enrichment
  37. 2026-09-15 23:08 UTCVendor advisory
  38. 2026-09-15 23:08 UTCGHSA enrichment
  39. 2026-09-15 19:23 UTCVendor advisory
  40. 2026-09-15 19:23 UTCGHSA enrichment
  41. 2026-09-15 15:38 UTCVendor advisory
  42. 2026-09-15 15:38 UTCGHSA enrichment
  43. 2026-09-15 11:53 UTCVendor advisory
  44. 2026-09-15 11:53 UTCGHSA enrichment
  45. 2026-09-15 08:08 UTCVendor advisory
  46. 2026-09-15 08:08 UTCGHSA enrichment
  47. 2026-09-15 04:23 UTCEG score recompute
  48. 2026-09-15 04:23 UTCVendor advisory
  49. 2026-09-15 04:23 UTCGHSA enrichment
  50. 2026-09-15 03:05 UTCEPSS rescore
  51. 2026-09-15 03:05 UTCEPSS rescore
  52. 2026-09-15 00:38 UTCVendor advisory
  53. 2026-09-15 00:38 UTCGHSA enrichment
  54. 2026-09-14 20:53 UTCVendor advisory
  55. 2026-09-14 20:53 UTCGHSA enrichment
  56. 2026-09-14 19:24 UTCCISA KEV update
  57. 2026-09-14 17:08 UTCVendor advisory
  58. 2026-09-14 17:08 UTCGHSA enrichment
  59. 2026-09-14 13:23 UTCVendor advisory
  60. 2026-09-14 13:23 UTCGHSA enrichment
  61. 2026-09-14 09:38 UTCVendor advisory
  62. 2026-09-14 09:38 UTCGHSA enrichment
  63. 2026-09-14 05:53 UTCVendor advisory
  64. 2026-09-14 05:53 UTCGHSA enrichment
  65. 2026-09-14 02:08 UTCVendor advisory
  66. 2026-09-14 02:08 UTCGHSA enrichment
  67. 2026-09-13 22:23 UTCVendor advisory
  68. 2026-09-13 22:23 UTCGHSA enrichment
  69. 2026-09-13 18:38 UTCVendor advisory
  70. 2026-09-13 18:38 UTCGHSA enrichment
  71. 2026-09-13 14:52 UTCVendor advisory
  72. 2026-09-13 14:52 UTCGHSA enrichment
  73. 2026-09-13 11:05 UTCVendor advisory
  74. 2026-09-13 11:05 UTCGHSA enrichment
  75. 2026-09-13 07:19 UTCVendor advisory

Publicly available exploits

(8 references)

Working exploit code is in the public domain (1 Metasploit module) (3 GitHub PoCs) (4 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-47128✓ verified
    First seen Jul 16, 2019

    Microsoft Windows 10 < build 17763 - AppXSvc Hard Link Privilege Escalation (Metasploit)

    Open source ↗
  • GitHub PoC0x00-0x00/CVE-2019-0841-BYPASS
    First seen Jun 11, 2019

    A fully automatic CVE-2019-0841 bypass targeting all versions of Edge in Windows 10.

    Open source ↗
  • Exploit-DBEDB-46976
    First seen Jun 7, 2019

    Microsoft Windows - AppX Deployment Service Local Privilege Escalation (3)

    Open source ↗
  • Exploit-DBEDB-46938
    First seen May 23, 2019

    Microsoft Windows - AppX Deployment Service Local Privilege Escalation (2)

    Open source ↗
  • GitHub PoClikekabin/CVE-2019-0841
    First seen Apr 10, 2019
    Open source ↗
  • Exploit-DBEDB-46683
    First seen Apr 9, 2019

    Microsoft Windows - AppX Deployment Service Privilege Escalation

    Open source ↗
  • Metasploitexploit/windows/local/appxsvc_hard_link_privesc✓ verified
    First seen Apr 9, 2019

    AppXSvc Hard Link Privilege Escalation

    Open source ↗
  • GitHub PoCrogue-kdc/CVE-2019-0841
    First seen Apr 5, 2019

    PoC code for CVE-2019-0841 Privilege Escalation vulnerability

    Open source ↗

Frequently asked(6)

What is CVE-2019-0841?
CVE-2019-0841 is a critical vulnerability published on April 9, 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-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0836.
When was CVE-2019-0841 disclosed?
CVE-2019-0841 was first published in the National Vulnerability Database on April 9, 2019, with the most recent update on October 29, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-0841 actively exploited?
Yes. CISA added CVE-2019-0841 to the Known Exploited Vulnerabilities catalog on March 15, 2022, affecting Microsoft Windows. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2019-0841?
CVE-2019-0841 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2019-0841?
CVE-2019-0841 affects Microsoft Windows. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2019-0841?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-0841, 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

Explore the affected products and dependency analysis for CVE-2019-0841

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