Intel

CVE-2026-56646

edge_chromium: Exposure of Sensitive Information to an Unauthorized Actor (CVE-2026-56646)

mediumEPSS 0.9%

Affected

  • microsoft/edge_chromium lt *..150.0.4078.48

Description

Exposure of sensitive information to an unauthorized actor in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

Source: cvelistv5NVD (NIST)CVE.org (MITRE)Microsoft Security Update GuideBSI WID PortalBSI CSAF

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

microsoftedge_chromium
150.0.4078.48fixed from 150.0.4078.48

Metrics

XIEM Effective CVSS
6.5
Source: nvd-v3
EPSS percentile
59.2 %
High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
KEV status
—
Show all metrics
Severity
medium
Priority score
81.83
Exploit maturity
no public PoC known
CVSS v3
6.5
EPSS score
0.9 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-07-03 21:17 UTC
CWE
CWE-200

Weakness classes (CWE)

  • CWE-200Class

    Exposure of Sensitive Information to an Unauthorized Actor

    The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

    cwe.mitre.org →

References & sources

Reanalysis & status changes

Chronological NVD audit events for this CVE — reanalyses, CVSS updates, CPE diffs.

  1. CVE Modified2026-07-06 16:16 UTC· 134c704f-9b21-4f2e-91b3-4a467353bcc0
    • SSVC: {"id":"CVE-2026-56646","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalI…
  2. New CVE Received2026-07-03 21:17 UTC· secure@microsoft.com
    • Affected: Microsoft Edge (Chromium-based)
    • Description: Exposure of sensitive information to an unauthorized actor in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
    • CVSS V3.1: AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
    • CWE: CWE-200

Linked advisories