Improper input validation in Microsoft Windows

CVE-2021-26626

Improper input validation vulnerability in XPLATFORM's execBrowser method can cause execute arbitrary commands. IF the second parameter value of the execBrowser function is ‘default’, the first parameter value could be passed to the ShellExecuteW API. The passed parameter is an arbitrary code to be executed. Remote attackers can use this vulnerability to execute arbitrary remote code.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.013 (68.2th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-26626: held from 0.012 to 0.013.

EPSS over last 30 days · oldest: 0.012 · newest: 0.013 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-26626?
CVE-2021-26626 is a high-severity vulnerability in Microsoft Windows, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2022-04-19.
How severe is CVE-2021-26626?
High severity. CVSS v3 base score is 8.1 out of 10.