CVE-2026-56645
High
Published: 03 July 2026
Published
03 July 2026
Modified
03 July 2026
KEV Added
—
Patch
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CVSS Score v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
N/A
Summary
CVE-2026-56645 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability. Its CVSS base score is 8.8 (High).
Operationally, it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-41646
Vulnerability details
Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
- CWE(s)
Related Threats
CVEs Like This One
CVE-2024-28909Shared CWE-122
CVE-2025-62456Shared CWE-122
CVE-2026-8509Shared CWE-122
CVE-2025-54630Shared CWE-122
CVE-2025-21248Shared CWE-122
CVE-2023-24897Shared CWE-122
CVE-2025-49672Shared CWE-122
CVE-2025-56394Shared CWE-122
CVE-2025-59487Shared CWE-122
CVE-2026-5264Shared CWE-122
Affected Assets
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.