Microsoft Edge Multiple Vulnerabilities

CSIRTS triage

What

Microsoft Edge contains multiple unspecified vulnerabilities tracked across six CVEs.

Who is affected

All users of Microsoft Edge running versions prior to the fix.

Urgency

Immediate patching is recommended as multiple vulnerabilities in a widely-deployed browser warrant urgent remediation.

Action

Update Microsoft Edge to the latest available version that resolves CVE-2026-19556, CVE-2026-19557, CVE-2026-19558, CVE-2026-19559, CVE-2026-19560, and CVE-2026-72970.

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

Details

Source

HKCERT Security Bulletins (HK · national-cert · site)

Severity

unknown

Published

2026-08-17

Exploitation

Not in CISA KEV at last sync

Original advisory: https://www.hkcert.org/security-bulletin/microsoft-edge-multiple-vulnerabilities_20260817

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.

• Low exploitation riskCVE-2026-195560.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 34% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-195570.30% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 23% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-195580.25% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 16% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-195590.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 34% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-195600.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 34% of all EPSS-scored CVEs.
• Low exploitation riskCVE-2026-729700.50% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

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

• unknownMicrosoft Edge security advisory (AV26-822)cccs
• high[NEW] [high] Google Chrome: Multiple Vulnerabilities Enable Unspecified Attackcert-bund
• high[NEW] [high] Microsoft Edge: Vulnerability enables code executioncert-bund
• unknownMultiple vulnerabilities in Microsoft Edge (August 17, 2026)cert-fr-avis
• highCVE-2026-72970: Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker …nvd
• unknownDSA-6436-1 chromium - security updatedebian
• unknownGoogle Chrome Multiple Vulnerabilitieshkcert
• unknownMultiple vulnerabilities in Google Chrome (August 12, 2026)cert-fr-avis
• highCVE-2026-19560: Use after free in Blink in Google Chrome prior to 151.0.7922.137 allowed a remote attacker to …nvd
• highCVE-2026-19559: Use after free in HTML in Google Chrome prior to 151.0.7922.137 allowed a remote attacker to e…nvd
• highCVE-2026-19558: Use after free in Extensions in Google Chrome prior to 151.0.7922.137 allowed an attacker who …nvd
• highCVE-2026-19557: Use after free in TabStrip in Google Chrome on Mac prior to 151.0.7922.137 allowed a remote at…nvd

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