What is CVE-2019-11933?

CVE-2019-11933 is a critical-severity vulnerability in Facebook Whatsapp For Android, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2019-10-23.

How severe is CVE-2019-11933?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2019-11933 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Facebook Whatsapp For Android

CVE-2019-11933

A heap buffer overflow bug in libpl_droidsonroids_gif before 1.2.19, as used in WhatsApp for Android before version 2.19.291 could allow remote attackers to execute arbitrary code or cause a denial of service.

Vulnerability class: Buffer Overflow

Published 2019-10-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.041 (90.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.041 · newest: 0.041 · change: 0.000

Affected products

Facebook Whatsapp For Android — versions 2.19.291, unspecified
Libpl Droidsonroids Gif Project
Whatsapp

Weakness classification (CWE)

Public proof-of-concept exploits

References

www.facebook.com/security/advisories/cve-2019-11933 (Third Party Advisory)

Frequently asked questions

What is CVE-2019-11933?: CVE-2019-11933 is a critical-severity vulnerability in Facebook Whatsapp For Android, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2019-10-23.
How severe is CVE-2019-11933?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-11933 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.