Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network-delivered browser RCE needing only a page visit (UI:R), no auth (PR:N), low complexity, with full loss of confidentiality, integrity, and availability in the browser context.
Primary rating from Vendor (microsoft).
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
6DescriptionNVD
Improper input validation in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
AnalysisAI
Remote code execution in Microsoft Edge (Chromium-based) before version 150.0.4078.48 allows an unauthenticated remote attacker to run arbitrary code when a victim is lured into loading attacker-controlled web content. The flaw stems from improper input validation (CWE-20) and carries a high-severity CVSS of 8.8, though it requires user interaction and has no public exploit identified at time of analysis. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to load attacker-controlled web content in a vulnerable Microsoft Edge build (any version below 150.0.4078.48) - the CVSS UI:R metric means user interaction such as visiting a malicious or compromised web page is mandatory, which is the key limiting factor. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) describes a network-reachable, low-complexity, unauthenticated attack whose only meaningful gate is required user interaction (UI:R) - i.e. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a malicious web page (or injects malicious content into an ad or compromised site) that delivers crafted input triggering the input-validation flaw in Edge's content handling. A victim running a vulnerable Edge build visits or is redirected to the page (satisfying UI:R) and, with no further clicks required beyond loading the content, the attacker gains arbitrary code execution in the browser context. … |
| Remediation | Vendor-released patch: update Microsoft Edge to 150.0.4078.48 or later, which contains the fix per Microsoft's advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57985. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Assess Microsoft Edge deployment scope and versions across the organization; alert users to exercise caution with untrusted websites. …
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Security-feature bypass in Microsoft Edge (Chromium-based) versions prior to 150.0.4078.48 lets a remote, unauthenticate
Remote code execution in Microsoft Edge (Chromium-based) stems from a use-after-free memory corruption flaw (CWE-416) th
Remote code execution in Microsoft Edge (Chromium-based) allows an unauthenticated attacker to run arbitrary code by lur
Remote code execution in Microsoft Edge (Chromium-based) stems from a heap-based buffer overflow (CWE-122) that a networ
Remote code execution in Microsoft Edge (Chromium-based) stems from a use-after-free (CWE-416) memory-corruption flaw th
Remote code execution in Microsoft Edge (Chromium-based) lets an unauthenticated network attacker run arbitrary code by
Remote code execution in Microsoft Edge (Chromium-based) before 150.0.4078.48 allows an unauthenticated attacker to run
Privilege elevation in Microsoft Edge (Chromium-based) lets a network attacker escalate privileges by luring a victim in
Remote code execution in Microsoft Edge (Chromium-based) stems from a use-after-free (CWE-416) memory-corruption flaw th
Remote code execution in Microsoft Edge (Chromium-based) via a type-confusion flaw (CWE-843) lets an unauthorized attack
Remote code execution in Microsoft Edge (Chromium-based) allows an unauthorized attacker to run arbitrary code when a vi
Remote code execution in Microsoft Edge (Chromium-based) allows an unauthorized attacker to break out of the browser's s
Same weakness CWE-20 – Improper Input Validation
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-41650
GHSA-mp46-jq23-75j9