CVE-2019-1089

high-risk
Published 2019-07-15

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'.

Do I need to act?

~
2.0% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
!
1 public exploit available
47135
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (19)

Affected Vendors

Microsoft

References (4)

Third Party Advisory http://packetstormsecurity.com/files/153683/Microsoft-Windows-RPCSS-Activation-K...
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1089
Third Party Advisory http://packetstormsecurity.com/files/153683/Microsoft-Windows-RPCSS-Activation-K...
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1089
55
/ 100
high-risk
Severity 24/34 · High
Exploitability 12/34 · Low
Exposure 19/34 · Moderate