# CVE-2026-66323

## Summary

- **CVE ID:** CVE-2026-66323
- **Severity:** MEDIUM
- **CVSS Score:** 5.4 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
- **CWE:** CWE-141
- **Published:** Aug 28, 2026
- **Last Modified:** Sep 3, 2026

## Description

Improper neutralization of parameter/argument delimiters in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

## Affected Products

- Microsoft — Microsoft Edge (Chromium-based) (1.0.0.0)

## References

- [CNA](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66323)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.29%
- **EPSS Percentile:** 21.6

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._