CVE-2020-24655

Name: CVE-2020-24655
Creator: NVD / NIST
Published: 2020-09-10T02:15:11.487+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.1/10EPSS 0.22%

Last modified Jun 17, 2026

CVE-2020-24655 is a medium-severity vulnerability rated 5.1/10 on the CVSS scale. A race condition in the Twilio Authy 2-Factor Authentication application before 24.3.7 for Android allows a user to potentially approve/deny an access request prior to unlocking the application with a PIN on older Android devices (effectively bypassing the PIN requirement).. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

Description

A race condition in the Twilio Authy 2-Factor Authentication application before 24.3.7 for Android allows a user to potentially approve/deny an access request prior to unlocking the application with a PIN on older Android devices (effectively bypassing the PIN requirement).

Metrics

CVSS 3.1

5.1/10

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

EPSS Probability

0.22%

13.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-362

Affected Software

Vendor	Product	Versions
Twilio	Authy 2-Factor Authentication	24.3.7

References

https://www.twilio.com/changelogVendor Advisory
https://www.twilio.com/changelogVendor Advisory

Timeline

Published: Sep 10, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-24655?

How severe is CVE-2020-24655?

CVE-2020-24655 has a CVSS score of 5.1/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2020-24655?

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-2020-24655?

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

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Source: NVD / NIST