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High CVSS 7.5

CVE-2026-58294

Microsoft Edge Chromium

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

What this means

Exposure
Exploitable remotely over the network and without authentication — but only if a user opens booby-trapped content. The attack does require particular conditions, which makes it less systematic.
Impact
An attacker can read sensitive data, modify or destroy data and take the service offline.
Weakness
Already-freed memory is reused, letting the attacker reclaim it and hijack execution.
Likelihood
Its EPSS score stays low: nothing points to imminent exploitation, which is no reason to leave it unpatched.

What to doFold into the next patch cycle.

Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.

Published
3 July 2026
CVSS
7.5 (v3.1) CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
0.34% probability of exploitation within 30 days · above 27% of all CVEs
Weakness
CWE-416
Sources
nvd
References

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