[NEW] [high] Microsoft Edge: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in Microsoft Edge to gain elevated privileges, execute arbitrary code, bypass security measures, conduct spoofing and cross-site scripting attacks, disclose sensitive information, or trigger a denial-of-service condition.
CSIRTS triage
- What
- An attacker can exploit multiple vulnerabilities in Microsoft Edge to gain elevated privileges, execute arbitrary code, bypass security measures, conduct spoofing and cross-site scripting attacks, disclose sensitive information, or trigger a denial-of-service condition.
- Who is affected
- Users of Microsoft Edge across various deployments.
- Urgency
- Remediation is high urgency due to the wide range of potential impacts.
- Action
- Update Microsoft Edge to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2200
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-2026-454880.36% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-454890.88% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 56% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-559450.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-566450.82% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 54% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-566460.92% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 58% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-579740.82% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 54% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-579750.61% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 46% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-579770.58% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 45% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-579810.82% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 54% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-579830.65% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 48% of all EPSS-scored CVEs.
Referenced CVEs
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- highCVE-2026-57991: Microsoft Edge (Chromium-based) Information Disclosure Vulnerabilitymsrc
- highCVE-2026-58294: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerabilitymsrc
- highCVE-2026-58299: Microsoft Edge for Android Remote Code Execution Vulnerabilitymsrc
- mediumCVE-2026-58291: Microsoft Edge (Chromium-based) Information Disclosure Vulnerabilitymsrc
- criticalCVE-2026-58289: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerabilitymsrc
- highCVE-2026-58292: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerabilitymsrc
- highCVE-2026-57992: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerabilitymsrc
- highCVE-2026-58283: Microsoft Edge (Chromium-based) Spoofing Vulnerabilitymsrc
- highCVE-2026-58285: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerabilitymsrc
- highCVE-2026-58284: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerabilitymsrc
- highCVE-2026-58282: Microsoft Edge (Chromium-based) Spoofing Vulnerabilitymsrc
- highCVE-2026-58297: Microsoft Edge for Android Information Disclosure Vulnerabilitymsrc
Recent advisories for Microsoft Edge
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.
- unknownMicrosoft Edge Multiple Vulnerabilitieshkcert · 2026-08-24
- unknownMultiple vulnerabilities in Microsoft Edge (August 21, 2026)cert-fr-avis · 2026-08-21
- unknownMicrosoft Edge security advisory (AV26-822)cccs · 2026-08-17
- high[NEW] [high] Microsoft Edge: Vulnerability enables code executioncert-bund · 2026-08-17
- unknownMicrosoft Edge Multiple Vulnerabilitieshkcert · 2026-08-17
- unknownMultiple vulnerabilities in Microsoft Edge (August 17, 2026)cert-fr-avis · 2026-08-17
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