CVE-2021-26871
Windows WalletService Elevation of Privilege Vulnerability
Windows WalletService 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
Windows WalletService Elevation of Privilege Vulnerability
Windows WalletService Elevation of Privilege Vulnerability
- Record
CVE-2021-26871- 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:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-13655
Windows WalletService Elevation of Privilege Vulnerability
- Record
EUVD-2021-13655- 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:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-x625-hhmv-77c7
Windows WalletService Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021...
Windows WalletService Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26885.
- Record
GHSA-x625-hhmv-77c7- 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
Windows WalletService Elevation of Privilege Vulnerability
- Record
CVE-2021-26871- 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
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | fr4nkxixi/CVE-2021-26871_POC | 2021-03-25 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-26871 is a high vulnerability (CVSS 7.8) in Microsoft Windows 10 Version 1507, published March 11, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.43%, the 73rd percentile. No source names a fixed version.