EUVD-2026-41645
GHSA-vr8w-r9rr-cvrq
Severity by source
AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
Local-only access (AV:L), race condition demands precise timing (AC:H), low-privilege authorized attacker; scope change for cross-boundary disclosure; no integrity or availability impact per disclosure-only description.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionCVE.org
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to disclose information locally.
AnalysisAI
Race condition in Microsoft Edge (Chromium-based) permits a locally authenticated, low-privileged attacker to disclose information beyond the intended security boundary, with the CVSS scope change (S:C) indicating impact can extend outside the directly vulnerable component - potentially across process or sandbox boundaries within the browser. No public exploit code has been identified and this CVE is not listed in the CISA KEV catalog, placing it in a lower operational priority tier despite the scope change. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a locally authenticated session with at least standard user (low) privileges on the target Windows host - remote unauthenticated exploitation is not possible per AV:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The overall risk is moderate-to-low in practice. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A threat actor with a low-privileged local account on a Windows system running Microsoft Edge triggers a concurrent operation - for example, by repeatedly initiating browser actions that race against a shared resource access - and wins the timing window to read memory or data belonging to a higher-privileged Edge process component. No public proof-of-concept code exists at time of analysis, and the AC:H metric reflects that reliable exploitation requires careful timing and is not trivially automatable. |
| Remediation | Apply the vendor-released patch by updating Microsoft Edge to the latest available version via the MSRC advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55945. … 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) 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
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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
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
Same weakness CWE-362 – Race Condition
View allSame technique Information Disclosure
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External POC / Exploit Code
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