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[UPDATE] [high] Microsoft Edge (Chromium-based): Vulnerability allows code execution

highCVE-2026-50521
A remote, authenticated attacker can exploit a vulnerability in Microsoft Edge to execute arbitrary program code.

CSIRTS triage

vendor: Microsoftproduct: Edge (Chromium-based)Remote code execution
What
A vulnerability allows a remote, authenticated attacker to execute arbitrary program code.
Who is affected
Users of Microsoft Edge (Chromium-based) with authentication.
Urgency
Critical urgency due to the potential for remote code execution.
Action
Update Microsoft Edge to the latest version to mitigate this vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity
high
Published
2026-07-02
Exploitation
Not in CISA KEV at last sync
Language
Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2108

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-50521coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Microsoft Edge (Chromium-based)

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CERT-Bund (BSI) Security Advisories