CVE-2026-55003
MEDIUMCVSS 6.5/10EPSS 0.67%
Last modified
CVE-2026-55003 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.. EPSS estimates a 0.67% chance of exploitation in the next 30 days.
Description
Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 1607 | < 10.0.14393.9339 |
| Microsoft | Windows 10 1809 | < 10.0.17763.9020 |
| Microsoft | Windows 10 21h2 | < 10.0.19044.7548 |
| Microsoft | Windows 10 22h2 | < 10.0.19045.7548 |
| Microsoft | Windows 11 24h2 | < 10.0.26100.8875 |
| Microsoft | Windows 11 25h2 | < 10.0.26200.8875 |
| Microsoft | Windows 11 26h1 | < 10.0.28000.2525 |
| Microsoft | Windows Server 2012 | All versions |
| Microsoft | Windows Server 2012 | r2 |
| Microsoft | Windows Server 2016 | < 10.0.14393.9339 |
| Microsoft | Windows Server 2019 | < 10.0.17763.9020 |
| Microsoft | Windows Server 2022 | < 10.0.20348.5386 |
| Microsoft | Windows Server 2025 | < 10.0.26100.33158 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-55003?
Use of uninitialized resource in Windows RDP allows an unauthorized attacker to disclose information over a network.
How severe is CVE-2026-55003?
CVE-2026-55003 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.
How do I fix CVE-2026-55003?
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-2026-54998Incorrect authorization in Microsoft Exchange Online allows …8.8
- CVE-2026-54999Concurrent execution using shared resource with improper syn…8.8
- CVE-2026-5500wolfSSL's wc_PKCS7_DecodeAuthEnvelopedData() does not proper…5.9
- CVE-2026-55000Use after free in Windows USB Print Driver allows an unautho…6.4
- CVE-2026-55001Improper certificate validation in Windows Active Directory …7.8
- CVE-2026-55002External control of file name or path in SQL Server allows a…8.8
- CVE-2026-55004Double free in Microsoft Printer Drivers allows an authorize…7.8
- CVE-2026-55005Heap-based buffer overflow in Microsoft Exchange Server allo…8.8
- CVE-2026-55006Insufficient granularity of access control in Microsoft Exch…7.8
- CVE-2026-55008Improper neutralization of input during web page generation …9.6
- CVE-2026-55009Deserialization of untrusted data in Microsoft Exchange Serv…7.8
- CVE-2026-5501wolfSSL_X509_verify_cert in the OpenSSL compatibility layer …8.1
Are you affected by CVE-2026-55003?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST