CVE-2019-1064
Microsoft Windows: AppX Deployment Service (AppXSVC) Privilege Escalation
As of , CVE-2019-1064 in Microsoft Windows is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.
- Exploited
- Yes: CISA listed it on 15 March 2022
- US federal deadline
- 5 April 202221 days after CISA listed it. US federal civilian agencies must fix it by then.
- Used in ransomware campaigns
- Known
- EPSS score
- 0.07Higher than 93% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
- EPSS when listed
- 0.01 on 15 March 2022EPSS on the day CISA listed it.
- Public exploit
- None foundNeither Metasploit nor Exploit-DB lists one.
- Fix
- No vendor link in CISA's entry
What CISA says to do
Apply updates per vendor instructions.
CISA's required action
What the flaw is
A privilege escalation vulnerability exists when Windows AppXSVC improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context.
CISA's description
An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.
The CVE record's description, from microsoft
- CVE published
- 12 June 2019
- Assigned by
- microsoft
- CVSS
- 7.8 High (CVSS 3.1, from the CNA)
- CWE-59
- Improper Link Resolution Before File Access ('Link Following')
- CISA SSVC, exploitation
- active
- CISA SSVC, automatable
- no
- CISA SSVC, technical impact
- total
Timeline
- The CVE record was published.
- CISA added it to its list of exploited vulnerabilities.
- The US federal deadline to fix it.
Windows: other exploited entries
| Vulnerability | Product | Our group | Listed | Deadline | EPSS |
|---|---|---|---|---|---|
| CVE-2025-60710Link Following | Microsoft Windows | Patch nowRansomware use, listed within a year | 0.05 | ||
| CVE-2008-4250Buffer Overflow | Microsoft Windows | Patch this weekMetasploit module; EPSS 0.99; verified Exploit-DB entry | 0.99 | ||
| CVE-2008-0015Video ActiveX Control Remote Code Execution | Microsoft Windows | Patch this weekMetasploit module; EPSS 0.77; verified Exploit-DB entry | 0.77 | ||
| CVE-2013-3918Out-of-Bounds Write | Microsoft Windows | Patch this weekMetasploit module; EPSS 0.74; verified Exploit-DB entry | 0.74 | ||
| CVE-2010-2568Remote Code Execution | Microsoft Windows | Patch this weekMetasploit module; EPSS 0.91; verified Exploit-DB entry | 0.91 | ||
| CVE-2015-0016TS WebProxy Directory Traversal | Microsoft Windows | Patch this weekMetasploit module; EPSS 0.76; verified Exploit-DB entry | 0.76 | ||
| CVE-2015-2426Adobe Type Manager Library Remote Code Execution | Microsoft Windows | Patch this weekMetasploit module; EPSS 0.87; verified Exploit-DB entry | 0.87 | ||
| CVE-2014-6332Object Linking & Embedding (OLE) Automation Array Remote Code Execution | Microsoft Windows | Patch this weekMetasploit module; EPSS 0.95; verified Exploit-DB entry | 0.95 | ||
| CVE-2017-0146SMB Remote Code Execution | Microsoft Windows | Patch this weekRansomware use; Metasploit module; EPSS 0.90; verified Exploit-DB entry | 0.90 | ||
| CVE-2014-4114Object Linking & Embedding (OLE) Remote Code Execution | Microsoft Windows | Patch this weekMetasploit module; EPSS 0.82; verified Exploit-DB entry | 0.82 |
Read further
- CVE recordcve.org
- NVD entrynvd.nist.gov
- CISA's catalogcisa.gov
- EPSS for this CVEapi.first.org