CVE-2021-26876
HIGHCVSS 8.8/10EPSS 2.53%
Last modified
CVE-2021-26876 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. OpenType Font Parsing Remote Code Execution Vulnerability. EPSS estimates a 2.53% chance of exploitation in the next 30 days.
Description
OpenType Font Parsing Remote Code Execution Vulnerability
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 | 20h2 |
| Microsoft | Windows 10 | 1803 |
| Microsoft | Windows 10 | 1809 |
| Microsoft | Windows 10 | 1909 |
| Microsoft | Windows 10 | 2004 |
| Microsoft | Windows Server 2016 | 20h2 |
| Microsoft | Windows Server 2016 | 1909 |
| Microsoft | Windows Server 2016 | 2004 |
| Microsoft | Windows Server 2016 | 2019 |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26876Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26876Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26876?
OpenType Font Parsing Remote Code Execution Vulnerability
How severe is CVE-2021-26876?
CVE-2021-26876 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.53% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26876?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-26870Windows Projected File System Elevation of Privilege Vulnera…7.8
- CVE-2021-26871Windows WalletService Elevation of Privilege Vulnerability7.8
- CVE-2021-26872Windows Event Tracing Elevation of Privilege Vulnerability7.8
- CVE-2021-26873Windows User Profile Service Elevation of Privilege Vulnerab…7
- CVE-2021-26874Windows Overlay Filter Elevation of Privilege Vulnerability7.8
- CVE-2021-26875Windows Win32k Elevation of Privilege Vulnerability7.8
- CVE-2021-26877Windows DNS Server Remote Code Execution Vulnerability9.8
- CVE-2021-26878Windows Print Spooler Elevation of Privilege Vulnerability7.8
- CVE-2021-26879Windows Network Address Translation (NAT) Denial of Service …7.5
- CVE-2021-26880Storage Spaces Controller Elevation of Privilege Vulnerabili…7.8
- CVE-2021-26881Microsoft Windows Media Foundation Remote Code Execution Vul…7.5
- CVE-2021-26882Remote Access API Elevation of Privilege Vulnerability7.8
Are you affected by CVE-2021-26876?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST