CVE-2021-24035

Name: CVE-2021-24035
Creator: NVD / NIST
Published: 2021-06-11T04:15:08.887+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 1.13%

Last modified Jun 17, 2026

CVE-2021-24035 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. A lack of filename validation when unzipping archives prior to WhatsApp for Android v2.21.8.13 and WhatsApp Business for Android v2.21.8.13 could have allowed path traversal attacks that overwrite WhatsApp files.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

A lack of filename validation when unzipping archives prior to WhatsApp for Android v2.21.8.13 and WhatsApp Business for Android v2.21.8.13 could have allowed path traversal attacks that overwrite WhatsApp files.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

1.13%

62.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Whatsapp	Whatsapp	< 2.21.8.13
Whatsapp	Whatsapp Business	< 2.21.8.13

References

https://www.whatsapp.com/security/advisories/2021/Vendor Advisory
https://www.whatsapp.com/security/advisories/2021/Vendor Advisory

Timeline

Published: Jun 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24035?

How severe is CVE-2021-24035?

CVE-2021-24035 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24035?

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-2021-24035?

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

Scan your code now

Source: NVD / NIST