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High CVSS 7.4

CVE-2026-57989

NVD analysis in progress

Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

What this means

Exposure
Exploitable remotely over the network and without authentication — but only if a user opens booby-trapped content.
Impact
An attacker can read sensitive data. The impact spreads beyond the vulnerable component into other parts of the system.
Weakness
A request’s origin is not validated, letting a third-party site act on the user’s behalf.
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
26 July 2026
CVSS
7.4 (v3.1) CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
EPSS
0.44% probability of exploitation within 30 days · above 36% of all CVEs
Weakness
CWE-346
Sources
nvd
References

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