CVE-2019-1253 KEV EXPLOIT
7.8
HIGH · CVSS 3.1 · EPSS 11.6% (pctl 96)
Patch first
On CISA KEV — known exploited in the wild, due 2022-04-05.
Description
An elevation of privilege vulnerability exists when the Windows AppX Deployment Server improperly handles junctions.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1215, CVE-2019-1278, CVE-2019-1303.
Scoring
| CVSS | 7.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 11.62% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-59 |
| On CISA KEV | yes — remediate by 2022-04-05 |
| Public exploit | yes |
| Published | 2019-09-11 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Microsoft Windows AppX Deployment Server Privilege Escalation Vulnerability |
|---|---|
| Added | 2022-03-15 |
| Due | 2022-04-05 |
| Vendor / product | Microsoft / Windows |
| Ransomware use | known |
Affected (8)
| Vendor | Product |
|---|---|
| microsoft | windows 10 1703 |
| microsoft | windows 10 1709 |
| microsoft | windows 10 1803 |
| microsoft | windows 10 1809 |
| microsoft | windows 10 1903 |
| microsoft | windows server 1803 |
| microsoft | windows server 1903 |
| microsoft | windows server 2019 |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | AppXSvc - Privilege Escalation | 2019-09-16 |
References
- http://packetstormsecurity.com/files/154488/AppXSvc-17763.1.amd64fre.rs5_release.180914-1434-Privilege-Escalation.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1253
- http://packetstormsecurity.com/files/154488/AppXSvc-17763.1.amd64fre.rs5_release.180914-1434-Privilege-Escalation.html
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1253
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1253
→ the Explorer · watch your stack · NVD