# Microsoft Edge 153.0.4234.46 Microsoft Edge 153.0.4234.46, released September 17, 2026, fixes 37 CVEs in Microsoft Edge. None of them is reported as exploited. Patch Radar priority: Urgent. The latest Microsoft Edge is 156.0.4314.58, which also fixes every one of these CVEs. - Web page: https://patchblox.com/security/fix/windows-app/microsoft.edge-153.0.4234.46 - Platform: Windows apps - Released: Sep 17, 2026 - Priority: Urgent (Closes CVE-2026-91721, rated Critical) - CVEs: 37, exploited: 0, on CISA KEV: 0 - Superseded by: [Microsoft Edge 156.0.4314.58](https://patchblox.com/security/data/product/windows-app/microsoft-edge.md), the latest version, which also fixes every CVE listed here ## Applies to | Product | Release | Fixed in | |---|---|---| | [Microsoft Edge](https://patchblox.com/security/data/product/windows-app/microsoft-edge.md) | | 153.0.4234.46 | ## CVEs this fix closes | CVE | Priority | Title | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2026-91721](https://patchblox.com/security/data/cve/CVE-2026-91721.md) | Urgent | Chromium CVE-2026-91721: Use after free | 8.8 | 0.0039 | | | [CVE-2026-91749](https://patchblox.com/security/data/cve/CVE-2026-91749.md) | Urgent | Chromium CVE-2026-91749: Use after free | 9.6 | 0.0038 | | | [CVE-2026-88094](https://patchblox.com/security/data/cve/CVE-2026-88094.md) | High | Azure Storage Library Elevation of Privilege Vulnerability | 8.1 | 0.0082 | | | [CVE-2026-91731](https://patchblox.com/security/data/cve/CVE-2026-91731.md) | High | Chromium CVE-2026-91731: Type confusion | 8.8 | 0.0044 | | | [CVE-2026-91741](https://patchblox.com/security/data/cve/CVE-2026-91741.md) | High | Chromium CVE-2026-91741: Type confusion | 8.8 | 0.0044 | | | [CVE-2026-91728](https://patchblox.com/security/data/cve/CVE-2026-91728.md) | High | Chromium CVE-2026-91728: Integer overflow | 9.6 | 0.0041 | | | [CVE-2026-91709](https://patchblox.com/security/data/cve/CVE-2026-91709.md) | High | Chromium CVE-2026-91709: Type confusion | 8.8 | 0.0041 | | | [CVE-2026-91745](https://patchblox.com/security/data/cve/CVE-2026-91745.md) | High | Chromium CVE-2026-91745: Use after free | 8.8 | 0.0036 | | | [CVE-2026-91729](https://patchblox.com/security/data/cve/CVE-2026-91729.md) | High | Chromium CVE-2026-91729: Use after free | 9.6 | 0.0034 | | | [CVE-2026-91736](https://patchblox.com/security/data/cve/CVE-2026-91736.md) | High | Chromium CVE-2026-91736: Use after free | 8.8 | 0.0034 | | | [CVE-2026-91737](https://patchblox.com/security/data/cve/CVE-2026-91737.md) | High | Chromium CVE-2026-91737: Use after free | 8.8 | 0.0034 | | | [CVE-2026-91724](https://patchblox.com/security/data/cve/CVE-2026-91724.md) | High | Chromium CVE-2026-91724: Use after free | 8.3 | 0.0034 | | | [CVE-2026-91718](https://patchblox.com/security/data/cve/CVE-2026-91718.md) | High | Chromium CVE-2026-91718: Use after free | 9.6 | 0.0033 | | | [CVE-2026-91738](https://patchblox.com/security/data/cve/CVE-2026-91738.md) | High | Chromium CVE-2026-91738: Improper input validation | 9.6 | 0.0033 | | | [CVE-2026-91715](https://patchblox.com/security/data/cve/CVE-2026-91715.md) | High | Chromium CVE-2026-91715: Type confusion | 8.8 | 0.0033 | | | [CVE-2026-91733](https://patchblox.com/security/data/cve/CVE-2026-91733.md) | High | Chromium CVE-2026-91733: Improper state validation | 9.6 | 0.0032 | | | [CVE-2026-91710](https://patchblox.com/security/data/cve/CVE-2026-91710.md) | High | Chromium CVE-2026-91710: Use after free | 9.6 | 0.0031 | | | [CVE-2026-91716](https://patchblox.com/security/data/cve/CVE-2026-91716.md) | High | Chromium CVE-2026-91716: Use after free | 9.6 | 0.0031 | | | [CVE-2026-91711](https://patchblox.com/security/data/cve/CVE-2026-91711.md) | High | Chromium CVE-2026-91711: Out of bounds write | 8.8 | 0.0031 | | | [CVE-2026-91722](https://patchblox.com/security/data/cve/CVE-2026-91722.md) | High | Chromium CVE-2026-91722: Use after free | 8.8 | 0.0031 | | | [CVE-2026-91735](https://patchblox.com/security/data/cve/CVE-2026-91735.md) | High | Chromium CVE-2026-91735: Incorrect authorization | 8.3 | 0.0031 | | | [CVE-2026-91720](https://patchblox.com/security/data/cve/CVE-2026-91720.md) | High | Chromium CVE-2026-91720: Uninitialized resource | 9.6 | 0.0027 | | | [CVE-2026-91732](https://patchblox.com/security/data/cve/CVE-2026-91732.md) | High | Chromium CVE-2026-91732: Missing authorization | 8.1 | 0.0026 | | | [CVE-2026-88097](https://patchblox.com/security/data/cve/CVE-2026-88097.md) | High | Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability | 8.1 | 0.0026 | | | [CVE-2026-91743](https://patchblox.com/security/data/cve/CVE-2026-91743.md) | High | Chromium CVE-2026-91743: Race condition | 8.3 | 0.0025 | | | [CVE-2026-91740](https://patchblox.com/security/data/cve/CVE-2026-91740.md) | High | Chromium CVE-2026-91740: Uninitialized resource | 9.6 | 0.0025 | | | [CVE-2026-91747](https://patchblox.com/security/data/cve/CVE-2026-91747.md) | High | Chromium CVE-2026-91747: Use after free | 9.6 | 0.0025 | | | [CVE-2026-91719](https://patchblox.com/security/data/cve/CVE-2026-91719.md) | High | Chromium CVE-2026-91719: Code injection | 8.1 | 0.0023 | | | [CVE-2026-91734](https://patchblox.com/security/data/cve/CVE-2026-91734.md) | High | Chromium CVE-2026-91734: Incorrect authorization | 7.4 | 0.0010 | | | [CVE-2026-91714](https://patchblox.com/security/data/cve/CVE-2026-91714.md) | Routine | Chromium CVE-2026-91714: Observable discrepancy | 5.3 | 0.0024 | | | [CVE-2026-91725](https://patchblox.com/security/data/cve/CVE-2026-91725.md) | Routine | Chromium CVE-2026-91725: Observable discrepancy | 5.3 | 0.0024 | | | [CVE-2026-91746](https://patchblox.com/security/data/cve/CVE-2026-91746.md) | Routine | Chromium CVE-2026-91746: Integer overflow | 4.3 | 0.0023 | | | [CVE-2026-91730](https://patchblox.com/security/data/cve/CVE-2026-91730.md) | Routine | Chromium CVE-2026-91730: Incomplete cleanup | 3.1 | 0.0023 | | | [CVE-2026-91739](https://patchblox.com/security/data/cve/CVE-2026-91739.md) | Routine | Chromium CVE-2026-91739: Missing authorization | 4.2 | 0.0019 | | | [CVE-2026-91713](https://patchblox.com/security/data/cve/CVE-2026-91713.md) | Routine | Chromium CVE-2026-91713: Missing authorization | 4.2 | 0.0019 | | | [CVE-2026-91723](https://patchblox.com/security/data/cve/CVE-2026-91723.md) | Routine | Chromium CVE-2026-91723: Race condition | 4.2 | 0.0017 | | | [CVE-2026-91708](https://patchblox.com/security/data/cve/CVE-2026-91708.md) | Routine | Chromium CVE-2026-91708: Race condition | 3.1 | 0.0016 | | --- Data as of 2026-11-11T07:45:43Z UTC. 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