EUVD-2026-66074
GHSA-6m3v-59wp-4j9q
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
AC raised to H because TOCTOU race condition exploitation requires precise timing; all other metrics align with the provided vector.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Lifecycle Timeline
3DescriptionCVE.org
Race condition in Extensions in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass system access restrictions via a crafted Chrome extension. (Chromium security severity: Low)
AnalysisAI
Race condition in Chrome's Extensions subsystem (versions prior to 152.0.7977.65) enables a remote attacker to bypass system access restrictions via a crafted Chrome extension, achieving high integrity impact with no confidentiality or availability effect. User interaction is required, and Chromium's own internal severity rating is Low - notably lower than the NVD CVSS Medium score of 6.5 - consistent with EPSS of 0.22% (12th percentile) and SSVC's 'none' exploitation status. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | A crafted Chrome extension must be present and active in the victim's browser; the attacker cannot exploit this vulnerability without the user first installing or interacting with the malicious extension. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Multiple signals converge on low real-world risk. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker distributes a malicious Chrome extension - potentially via the Chrome Web Store with a benign-appearing use case - that is engineered to exploit a race window in the Extensions permission validation subsystem. When a target user installs or interacts with the extension, the crafted extension races the permission check to perform a privileged operation that would normally be blocked by system access restrictions, achieving unauthorized integrity impact. … |
| Remediation | Update Google Chrome to version 152.0.7977.65 or later, which contains the vendor-released fix. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
Same technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today