How severe is CVE-2019-11931?

CVE-2019-11931 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-11931 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-11931?

CVE-2019-11931 primarily affects Whatsapp. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-11931?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-11931 published?

CVE-2019-11931 was published on 2019-11-14 and last updated on 2026-06-17.

CVE-2019-11931

CVE-2019-11931 is a high-severity vulnerability in Whatsapp with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Whatsapp
Published: 2019-11-14
Last modified: 2026-06-17

Description

A stack-based buffer overflow could be triggered in WhatsApp by sending a specially crafted MP4 file to a WhatsApp user. The issue was present in parsing the elementary stream metadata of an MP4 file and could result in a DoS or RCE. This affects Android versions prior to 2.19.274, iOS versions prior to 2.19.100, Enterprise Client versions prior to 2.25.3, Business for Android versions prior to 2.19.104 and Business for iOS versions prior to 2.19.100.

Frequently asked questions

What is CVE-2019-11931?: A stack-based buffer overflow could be triggered in WhatsApp by sending a specially crafted MP4 file to a WhatsApp user. The issue was present in parsing the elementary stream metadata of an MP4 file and could result in a DoS or RCE. This affects Android versions prior to 2.19.274, iOS versions prior to 2.19.100, Enterprise Client versions prior to 2.25.3, Business for Android versions prior to 2.19.104 and Business for iOS versions prior to 2.19.100.
How severe is CVE-2019-11931?: CVE-2019-11931 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-11931 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-11931?: CVE-2019-11931 primarily affects Whatsapp. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-11931?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-11931 published?: CVE-2019-11931 was published on 2019-11-14 and last updated on 2026-06-17.

References

https://www.facebook.com/security/advisories/cve-2019-11931

Affected products (6)

cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:windows:*:*
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:*
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:*
cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:*
cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:android:*:*
cpe:2.3:a:whatsapp:whatsapp_enterprise_client:*:*:*:*:*:*:*:*

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