CVE-2021-27091
RPC Endpoint Mapper Service Elevation of Privilege Vulnerability
RPC Endpoint Mapper Service Elevation of Privilege Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
RPC Endpoint Mapper Service Elevation of Privilege Vulnerability
RPC Endpoint Mapper Service Elevation of Privilege Vulnerability
- Record
CVE-2021-27091- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-13862
RPC Endpoint Mapper Service Elevation of Privilege Vulnerability
- Record
EUVD-2021-13862- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vcr7-q7v7-v84f
RPC Endpoint Mapper Service Elevation of Privilege Vulnerability
RPC Endpoint Mapper Service Elevation of Privilege Vulnerability
- Record
GHSA-vcr7-q7v7-v84f- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-269
- Updated
- 2026-11-02
NVD
RPC Endpoint Mapper Service Elevation of Privilege Vulnerability
- Record
CVE-2021-27091- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-27091 is a high vulnerability (CVSS 7.8) in Microsoft Windows 7, published April 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.59%, the 48th percentile. No source names a fixed version.