CVE-2026-42896
HIGHCVSS 7.8/10EPSS 0.28%
Last modified
CVE-2026-42896 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.. EPSS estimates a 0.28% chance of exploitation in the next 30 days.
Description
Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 11 24h2 | < 10.0.26100.8457 |
| Microsoft | Windows 11 25h2 | < 10.0.26200.8457 |
| Microsoft | Windows 11 26h1 | < 10.0.28000.2113 |
| Microsoft | Windows Server 2025 | < 10.0.26100.32860 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-42896?
Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-42896?
CVE-2026-42896 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.28% probability of exploitation in the next 30 days.
How do I fix CVE-2026-42896?
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-2026-42889Relay adds real-time collaboration to Obsidian. Relay Server…9.1
- CVE-2026-4289A security vulnerability has been detected in Tiandy Easy7 I…7.3
- CVE-2026-42890Actual is an open-source personal finance application. In th…4.8
- CVE-2026-42891User interface (ui) misrepresentation of critical informatio…6.5
- CVE-2026-42893Improper neutralization of special elements used in a comman…7.5
- CVE-2026-42895Improper neutralization of special elements used in a comman…7.5
- CVE-2026-42897Improper neutralization of input during web page generation …6.1
- CVE-2026-42898Improper control of generation of code ('code injection') in…9.9
- CVE-2026-42899Loop with unreachable exit condition ('infinite loop') in AS…7.5
- CVE-2026-4290The WP Travel Pro plugin for WordPress is vulnerable to arbi…9.1
- CVE-2026-42900Concurrent execution using shared resource with improper syn…8.1
- CVE-2026-42901Origin validation error in Microsoft Entra ID allows an unau…10
Are you affected by CVE-2026-42896?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST