CVE-2021-21140
MEDIUMCVSS 6.8/10EPSS 0.76%
Last modified
CVE-2021-21140 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Uninitialized use in USB in Google Chrome prior to 88.0.4324.96 allowed a local attacker to potentially perform out of bounds memory access via via a USB device.. EPSS estimates a 0.76% chance of exploitation in the next 30 days.
Description
Uninitialized use in USB in Google Chrome prior to 88.0.4324.96 allowed a local attacker to potentially perform out of bounds memory access via via a USB device.
Metrics
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Chrome | < 88.0.4324.96 | |
| Microsoft | Edge | < 88.0.705.74 |
References
- https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.htmlRelease Notes, Vendor Advisory
- https://crbug.com/1136327Permissions Required, Third Party Advisory
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21140Patch, Vendor Advisory
- https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.htmlRelease Notes, Vendor Advisory
- https://crbug.com/1136327Permissions Required, Third Party Advisory
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21140Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-21140?
Uninitialized use in USB in Google Chrome prior to 88.0.4324.96 allowed a local attacker to potentially perform out of bounds memory access via via a USB device.
How severe is CVE-2021-21140?
CVE-2021-21140 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.
How do I fix CVE-2021-21140?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-21140?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST