Vulnerability Details : 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.
Vulnerability category: Overflow
Exploit prediction scoring system (EPSS) score for CVE-2021-21140
Probability of exploitation activity in the next 30 days: 0.05%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 19 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-21140
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
nvd@nist.gov |
|
6.8
|
MEDIUM | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
0.9
|
5.9
|
nvd@nist.gov |
CWE ids for CVE-2021-21140
-
The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-21140
-
https://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html
Chrome Releases: Stable Channel Update for DesktopRelease Notes;Vendor Advisory
-
https://crbug.com/1136327
1136327 - Security: Use of use-of-uninitialized-value in UsbDeviceHandleUsbfsPermissions Required;Third Party Advisory
-
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-21140
CVE-2021-21140 - Security Update Guide - Microsoft - Chromium CVE-2021-21140: Uninitialized Use in USBPatch;Vendor Advisory
Products affected by CVE-2021-21140
- cpe:2.3:a:microsoft:edge:*:*:*:*:*:*:*:*
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*