EUVD-2026-52528
GHSA-vvjh-r97m-7gw9
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Network-accessible spoofing with no privileges needed but mandatory user interaction; limited cross-origin data exposure and content integrity impact only; no availability effect.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
2DescriptionCVE.org
Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
AnalysisAI
Spoofing via origin validation failure in Microsoft Edge (Chromium-based) allows a network-adjacent unauthenticated attacker to deceive users or systems about the true origin of web content or requests. All Chromium-based Edge versions are affected per the wildcard CPE, and a vendor-released patch is confirmed via the Microsoft Security Response Center. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to actively interact with attacker-controlled web content - for example, visiting a malicious URL or clicking a link that triggers cross-origin communication - satisfying the UI:R requirement in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 5.4 (Medium) reflects a network-accessible, low-complexity attack requiring no privileges but mandating user interaction (UI:R), with limited confidentiality and integrity impact and no availability impact (C:L/I:L/A:N, S:U). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply the vendor-released patch as documented in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66316. … Detailed patch versions, workarounds, and compensating controls in full report. |
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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) before 151.0.4129.59 allows a network attacker to run arbitrary
Remote code execution via buffer over-read in Microsoft Edge (Chromium-based) versions prior to 151.0.4129.59 affects au
Remote code execution in Microsoft Edge (Chromium-based) prior to version 151.0.4129.59 is achievable by an unauthentica
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) is enabled by a type confusion vulnerability (CWE-843) that can
Remote code execution in Microsoft Edge (Chromium-based) before version 150.0.4078.48 allows an unauthenticated remote a
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
Same weakness CWE-346 – Origin Validation Error
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
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