CVE-2019-1130: Microsoft Windows AppX Deployment Service Privilege Escalation Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 23 May 2022, 1,029 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 1.7%
EPSS score, percentile 77.4 of all scored records
- How severe?
- 7.8 High
CVSS v3.1 base score, from CISA's enrichment of the record
- What should I do?
Required action (CISA), due 13 Jun 2022: Apply updates per vendor instructions.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected: 2012; 2012 (Core installation); 2012 R2; 2012 R2 (Core installation); 2016; 2016 (Core installation); version 1803 (Core Installation); 2019; 2019 (Core installation); 8.1 for x64-based systems; RT 8.1; 10 for 32-bit Systems; 10 for x64-based Systems; 10 Version 1607 for 32-bit Systems; 10 Version 1607 for x64-based Systems; 10 Version 1703 for 32-bit Systems; 10 Version 1703 for x64-based Systems; 10 Version 1709 for 32-bit Systems; 10 Version 1709 for x64-based Systems; 10 Version 1803 for 32-bit Systems; 10 Version 1803 for x64-based Systems; unspecified; unspecified; unspecified; unspecified
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply updates per vendor instructions.
CISA due date for this action: 13 June 2022.
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | 2012 |
| Affected | 2012 (Core installation) |
| Affected | 2012 R2 |
| Affected | 2012 R2 (Core installation) |
| Affected | 2016 |
| Affected | 2016 (Core installation) |
| Affected | version 1803 (Core Installation) |
| Affected | 2019 |
| Affected | 2019 (Core installation) |
| Status | Versions |
|---|---|
| Affected | 8.1 for x64-based systems |
| Affected | RT 8.1 |
| Affected | 10 for 32-bit Systems |
| Affected | 10 for x64-based Systems |
| Affected | 10 Version 1607 for 32-bit Systems |
| Affected | 10 Version 1607 for x64-based Systems |
| Affected | 10 Version 1703 for 32-bit Systems |
| Affected | 10 Version 1703 for x64-based Systems |
| Affected | 10 Version 1709 for 32-bit Systems |
| Affected | 10 Version 1709 for x64-based Systems |
| Affected | 10 Version 1803 for 32-bit Systems |
| Affected | 10 Version 1803 for x64-based Systems |
And 5 more version entries in the CVE record.
| Status | Versions |
|---|---|
| Affected | unspecified |
| Status | Versions |
|---|---|
| Affected | unspecified |
| Status | Versions |
|---|---|
| Affected | unspecified |
| Status | Versions |
|---|---|
| Affected | unspecified |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
A privilege escalation vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2019-1130 to its Known Exploited Vulnerabilities (KEV) catalog on 23 May 2022.
- CISA marks it as known to be used in ransomware campaigns.
- The due date CISA sets for the required action is 13 Jun 2022.
- The CVE record was published on 29 Jul 2019, 1,029 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 7.8 (High), taken from CISA's enrichment of the record.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 1.7% (percentile 77.4), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
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-2019-1129.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
- CWE-59: Improper Link Resolution Before File Access ('Link Following')
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 29 Jul 2019 | CVE record published |
| 23 May 2022 | Added to CISA KEV |
| 13 Jun 2022 | CISA due date for the required action |
| 12 Aug 2026 | CVE record last updated |
References
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