CVE-2026-559454.2MediumCWE-362
Microsoft Edge (Chromium-based) vulnerability
Microsoft · Microsoft Edge (Chromium-based)
Not in CISA KEVVendor fix available
0.2%probability of exploitation in the next 30 days
8th percentile
050100
Higher than 8% of scored CVEs
4.2MediumCVSS 3.1
LowMediumHighCrit.
DescriptionNVD
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.
Coverage1 article · 1 outlet
First in our coverage: Dark Reading, 16 Sep.
- Browser Extensions Hijacked AI Assistants in Five Major BrowsersDark Reading · first in our coverage · mentions it in passing
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