[NEW] [high] Microsoft Edge: Multiple vulnerabilities
An attacker can exploit multiple vulnerabilities in Microsoft Edge to execute arbitrary code, circumvent security measures, perform spoofing attacks, manipulate or disclose data, or cause a denial-of-service condition.
CSIRTS triage
- What
- An attacker can exploit multiple vulnerabilities in Microsoft Edge to execute arbitrary code, bypass security, perform spoofing, manipulate data, or cause denial of service.
- Who is affected
- All users running vulnerable versions of Microsoft Edge are at risk.
- Urgency
- High priority; multiple remote code execution vectors available in widely-used browser.
- Action
- Update Microsoft Edge to the latest patched version immediately.
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-2026-3085
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-2026-586160.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-629040.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 20% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-663230.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-663240.65% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 49% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-667980.56% 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-2026-729840.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 37% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-703090.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-58616 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-62904 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-66323 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-66324 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-66798 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-70341 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-72984 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-70309 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownVulnérabilité dans Microsoft Edge (09 septembre 2026)cert-fr-avis
- unknownMicrosoft Edge Multiple Vulnerabilitieshkcert
- highCVE-2026-72984: Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-base…nvd
- mediumCVE-2026-70309: Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to …nvd
- mediumCVE-2026-66798: Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute c…nvd
- mediumCVE-2026-66324: External control of file name or path in Microsoft Edge (Chromium-based) allows an unauthorize…nvd
- mediumCVE-2026-66323: Improper neutralization of parameter/argument delimiters in Microsoft Edge (Chromium-based) al…nvd
- mediumCVE-2026-62904: Incorrect authorization in Microsoft Edge (Chromium-based) allows an unauthorized attacker to …nvd
- mediumCVE-2026-58616: Concurrent execution using shared resource with improper synchronization ('race condition') in…nvd
- highCVE-2026-72984: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerabilitymsrc
- mediumCVE-2026-66323: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerabilitymsrc
- mediumCVE-2026-70309: Microsoft Edge (Chromium-based) Security Feature Bypass 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.
- highexploited[UPDATE] [hoch] Google Chrome / Microsoft Edge: Mehrere Schwachstellencert-bund · 2026-09-11
- unknownexploitedVulnérabilité dans Microsoft Edge (10 septembre 2026)cert-fr-avis · 2026-09-10
- unknownVulnérabilité dans Microsoft Edge (09 septembre 2026)cert-fr-avis · 2026-09-09
- unknownMicrosoft Edge Multiple Vulnerabilitieshkcert · 2026-09-04
- unknownMultiples vulnérabilités dans Microsoft Edge (04 septembre 2026)cert-fr-avis · 2026-09-04
- highexploited[UPDATE] [high] Google Chrome / Microsoft Edge: Vulnerability enables code executioncert-bund · 2026-09-02
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