CVE-2026-23656
MEDIUMCVSS 5.9/10EPSS 0.30%
Last modified
CVE-2026-23656 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. Insufficient verification of data authenticity in Windows App Installer allows an unauthorized attacker to perform spoofing over a network.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.
Description
Insufficient verification of data authenticity in Windows App Installer allows an unauthorized attacker to perform spoofing over a network.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows App | < 2.0.964.0 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-23656?
Insufficient verification of data authenticity in Windows App Installer allows an unauthorized attacker to perform spoofing over a network.
How severe is CVE-2026-23656?
CVE-2026-23656 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.
How do I fix CVE-2026-23656?
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
- Same Subject, Wrong User: A Cross-Issuer Account Takeover in n8nStrix found an identity-binding bug in n8n's token-exchange flow enabling account takeover.
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Are you affected by CVE-2026-23656?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST