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Fencer Intel
critical 9.8

CVE-2020-1907 json

A stack overflow in WhatsApp for Android prior to v2.20.196.16, WhatsApp Business for Android prior to v2.20.196.12, WhatsApp for iOS prior…

published 6y ago modified 4mo ago also EUVD-2020-12733

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

A stack overflow in WhatsApp for Android prior to v2.20.196.16, WhatsApp Business for Android prior to v2.20.196.12, WhatsApp for iOS prior to v2.20.90, WhatsApp Business for iOS prior to v2.20.90, and WhatsApp for Portal prior to v173.0.0.29.505 could have allowed arbitrary code execution when parsing the contents of an RTP Extension header.

Patch / fix

  • Facebook WhatsApp for Android 2.20.196.16
  • Facebook WhatsApp Business for Android 2.20.196.12
  • Facebook WhatsApp for iOS 2.20.90
  • Facebook WhatsApp Business for iOS 2.20.90
  • Facebook WhatsApp for Portal 173.0.0.29.505

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Exploit prediction

1.89% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Facebook WhatsApp for Android
  • Facebook WhatsApp Business for Android
  • Facebook WhatsApp for iOS
  • Facebook WhatsApp Business for iOS
  • Facebook WhatsApp for Portal

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.