CVE-2021-22961

Name: CVE-2021-22961
Creator: NVD / NIST
Published: 2021-10-18T13:15:09.377+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.67%

Last modified Jun 17, 2026

CVE-2021-22961 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A code injection vulnerability exists within the firewall software of GlassWire v2.1.167 that could lead to arbitrary code execution from a file in the user path on first execution.. EPSS estimates a 1.67% chance of exploitation in the next 30 days.

Description

A code injection vulnerability exists within the firewall software of GlassWire v2.1.167 that could lead to arbitrary code execution from a file in the user path on first execution.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.67%

73.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Glasswire	Glasswire	2.1.167

References

https://hackerone.com/reports/1193641Permissions Required
https://hackerone.com/reports/1193641Permissions Required

Timeline

Published: Oct 18, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22961?

A code injection vulnerability exists within the firewall software of GlassWire v2.1.167 that could lead to arbitrary code execution from a file in the user path on first execution.

How severe is CVE-2021-22961?

CVE-2021-22961 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.67% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22961?

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.

Are you affected by CVE-2021-22961?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST