Vulnerability in Microsoft Multiple
CVE-2019-1089
An elevation of privilege vulnerability exists in rpcss.dll when the RPC service Activation Kernel improperly handles an RPC request. To exploit this vulnerability, a low level authenticated attacker could run a specially crafted application. The security update addresses this vulnerability by correcting how rpcss.dll handles these requests., aka 'Windows RPCSS Elevation of Privilege Vulnerability'.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.049 (92.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.049 · newest: 0.049 · change: 0.000
Affected products
- Microsoft Multiple — versions Multiple
- Microsoft Windows 10 — versions 1607, 1703, 1709
- Microsoft Windows 7
- Microsoft Windows 8.1
- Microsoft Windows Rt 8.1
- Microsoft Windows Server 2008 — versions r2
- Microsoft Windows Server 2012 — versions r2
- Microsoft Windows Server 2016 — versions 1803, 1903
- Microsoft Windows Server 2019
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1089 (Patch, Vendor Advisory)
- packetstormsecurity.com/files/153683/Microsoft-Windows-RPCSS-Activation-Kernel-… (Third Party Advisory)
Frequently asked questions
- What is CVE-2019-1089?
- CVE-2019-1089 is a high-severity vulnerability in Microsoft Multiple. CVSS score: 7.8/10. Published 2019-07-15.
- How severe is CVE-2019-1089?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2019-1089 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.