Multiple vulnerabilities in Microsoft Edge (July 20, 2026)

unknownCVE-2026-15903 CVE-2026-15768 CVE-2026-15776 CVE-2026-15765 CVE-2026-15771 CVE-2026-15775

Multiple vulnerabilities have been discovered in Microsoft Edge. They allow an attacker to cause data integrity issues and an unspecified security issue by the vendor.

CSIRTS triage

vendor: Microsoft product: EdgeOther

What: Multiple vulnerabilities have been discovered that allow an attacker to cause data integrity issues and an unspecified security issue.
Who is affected: Users of Microsoft Edge are affected by these vulnerabilities.
Urgency: Remediation is necessary due to the potential for data integrity issues, though the severity is currently unknown.
Action: Update to the latest version of Microsoft Edge to mitigate these vulnerabilities.

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

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Details

Source: CERT-FR Avis de sécurité (FR · national-cert · site)
Severity: unknown
Published: 2026-07-20
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0903/

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-2026-159030.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all scored CVEs.
Low exploitation riskCVE-2026-157680.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all scored CVEs.
Low exploitation riskCVE-2026-157760.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 28% of all scored CVEs.
Low exploitation riskCVE-2026-157650.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all scored CVEs.
Low exploitation riskCVE-2026-157710.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all scored CVEs.
Low exploitation riskCVE-2026-157750.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all scored CVEs.
Low exploitation riskCVE-2026-159050.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
Low exploitation riskCVE-2026-579800.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all scored CVEs.
Low exploitation riskCVE-2026-157640.48% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 39% of all scored CVEs.
Low exploitation riskCVE-2026-157690.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-15903	coverage & exploitation status	NVD · CVE.org
CVE-2026-15768	coverage & exploitation status	NVD · CVE.org
CVE-2026-15776	coverage & exploitation status	NVD · CVE.org
CVE-2026-15765	coverage & exploitation status	NVD · CVE.org
CVE-2026-15771	coverage & exploitation status	NVD · CVE.org
CVE-2026-15775	coverage & exploitation status	NVD · CVE.org
CVE-2026-15905	coverage & exploitation status	NVD · CVE.org
CVE-2026-57980	coverage & exploitation status	NVD · CVE.org
CVE-2026-15764	coverage & exploitation status	NVD · CVE.org
CVE-2026-15769	coverage & exploitation status	NVD · CVE.org
CVE-2026-15773	coverage & exploitation status	NVD · CVE.org
CVE-2026-15901	coverage & exploitation status	NVD · CVE.org
CVE-2026-15900	coverage & exploitation status	NVD · CVE.org
CVE-2026-15772	coverage & exploitation status	NVD · CVE.org
CVE-2026-15766	coverage & exploitation status	NVD · CVE.org
CVE-2026-15777	coverage & exploitation status	NVD · CVE.org
CVE-2026-15770	coverage & exploitation status	NVD · CVE.org
CVE-2026-15774	coverage & exploitation status	NVD · CVE.org
CVE-2026-15904	coverage & exploitation status	NVD · CVE.org
CVE-2026-15899	coverage & exploitation status	NVD · CVE.org
CVE-2026-15902	coverage & exploitation status	NVD · CVE.org
CVE-2026-15778	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

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.

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