CVE-2026-59122
HIGHCVSS 7/10EPSS 0.19%
Last modified
CVE-2026-59122 is a high-severity vulnerability rated 7/10 on the CVSS scale. Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1607 | < 10.0.14393.9418 |
| Microsoft | Windows 10 1809 | < 10.0.17763.9115 |
| Microsoft | Windows 10 21h2 | < 10.0.19044.7663 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.7663 |
| Microsoft | Windows 11 23h2 | < 10.0.22631.7517 |
| Microsoft | Windows 11 24h2 | < 10.0.26100.9106 |
| Microsoft | Windows 11 25h2 | < 10.0.26200.9106 |
| Microsoft | Windows 11 26h1 | < 10.0.28000.2704 |
| Microsoft | Windows Server 2012 | All versions |
| Microsoft | Windows Server 2012 | r2 |
| Microsoft | Windows Server 2016 | < 10.0.14393.9418 |
| Microsoft | Windows Server 2019 | < 10.0.17763.9115 |
| Microsoft | Windows Server 2022 | < 10.0.20348.5440 |
| Microsoft | Windows Server 2025 | < 10.0.26100.33222 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59122Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-59122?
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-59122?
CVE-2026-59122 has a CVSS score of 7/10 (HIGH severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.
How do I fix CVE-2026-59122?
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 2026
- CVE-2026-59113Missing authorization in Visual Studio Code allows an unauth…8.8
- CVE-2026-59115'.../...//' in Microsoft Entra Provisioning Service (SyncFab…9.9
- CVE-2026-59117Integer overflow or wraparound in Windows Terminal allows an…7.5
- CVE-2026-59118Improper authorization in Copilot Cowork allows an unauthori…9.3
- CVE-2026-59119Incorrect default permissions in Microsoft PowerShell allows…7.3
- CVE-2026-5912Integer overflow in WebRTC in Google Chrome prior to 147.0.7…8.8
- CVE-2026-59124Deserialization of untrusted data in Microsoft High Performa…9.8
- CVE-2026-59125Use after free in Virtual Hard Disk (VHD) Miniport Driver al…7
- CVE-2026-59126Concurrent execution using shared resource with improper syn…7
- CVE-2026-59127Integer overflow or wraparound in Windows Installer allows a…7.8
- CVE-2026-59128Out-of-bounds read in Windows Encrypting File System (EFS) a…5.5
- CVE-2026-5913Out of bounds read in Blink in Google Chrome prior to 147.0.…8.1
Are you affected by CVE-2026-59122?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST