CVE-2020-1891

highpriority · track · 40EPSS 0.015 · 74 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.49% (74th) EPSS

CVSS 7.5 · high

Is it mine?

12 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

A user controlled parameter used in video call in WhatsApp for Android prior to v2.20.17, WhatsApp Business for Android prior to v2.20.7, WhatsApp for iPhone prior to v2.20.20, and WhatsApp Business for iPhone prior to v2.20.20 could have allowed an out-of-bounds write on 32-bit devices.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimary

affected products (12)

Products and version ranges known to be affected.

Facebook WhatsApp Android≤ 2.20.17enisa_euvdEU
Facebook WhatsApp Androidunspecified → 2.20.17enisa_euvdEU
Facebook WhatsApp Business for Android≤ 2.20.7enisa_euvdEU
Facebook WhatsApp Business for Androidunspecified → 2.20.7enisa_euvdEU
Facebook WhatsApp Business for iPhone≤ 2.20.20enisa_euvdEU
Facebook WhatsApp Business for iPhoneunspecified → 2.20.20enisa_euvdEU
Facebook WhatsApp iPhone≤ 2.20.20enisa_euvdEU
Facebook WhatsApp iPhoneunspecified → 2.20.20enisa_euvdEU
whatsapp whatsapp< 2.20.17nvdUScpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:*:*:*
whatsapp whatsapp< 2.20.20nvdUScpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:*:*:*
whatsapp whatsapp business< 2.20.20nvdUScpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:*:*:*
whatsapp whatsapp business< 2.20.7nvdUScpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-09-03modified 2026-06-17

related (16,128)

Related entries.

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+16123 more

references (4)

External citations — patches, advisories, analysis.

scry

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