CVE-2026-55945

CVE Enrichment

CVSS: 4.2 MEDIUM
EPSS: 0.19%
EPSS Percentile: 7.66%
CISA KEV: Not listed

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: secure@microsoft.com
Published: 04-Jul-2026 04:17
Last Modified: 07-Jul-2026 20:31
EPSS Date: 2026-10-16
CWE: CWE-362

CVSS Vector


            CVSS:3.1                            AV:L /
                            AC:H /
                            PR:L /
                            UI:N /
                            S:C /
                            C:L /
                            I:L /
                            A:N

Affected Products / Versions

microsoft / edge_chromium
Version / affected range: * · before (exclusive) 150.0.4078.48
cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*

References

secure@microsoft.com

Last enrichment sync: 17-Oct-2026 18:40
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

#BragJack BragJack Uses Malicious Extensions to Hijack Browser AI Agents

CVE (1)

People (1)

MITRE ATT&CK (2)

Vendors (2)

Products (6)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.