What is CVE-2021-24035?

CVE-2021-24035 is a critical-severity vulnerability in Facebook Whatsapp Business For Android, classified under Relative Path Traversal. CVSS score: 9.1/10. Published 2021-06-11.

How severe is CVE-2021-24035?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Path Traversal in Facebook Whatsapp Business For Android

CVE-2021-24035

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.

Published 2021-06-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (65.9th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Facebook Whatsapp Business For Android — versions unspecified
Facebook Whatsapp For Android — versions unspecified
Whatsapp
Whatsapp Business

Weakness classification (CWE)

References

www.whatsapp.com/security/advisories/2021/ (Vendor Advisory)

Frequently asked questions

What is CVE-2021-24035?: CVE-2021-24035 is a critical-severity vulnerability in Facebook Whatsapp Business For Android, classified under Relative Path Traversal. CVSS score: 9.1/10. Published 2021-06-11.
How severe is CVE-2021-24035?: Critical severity. CVSS v3 base score is 9.1 out of 10.