Is It On KEV?

Meta Platforms WhatsApp

YES - ON THE CISA KEV LIST
CVE-2019-18426

WhatsApp Cross-Site Scripting Vulnerability

CISA catalog due date2022-06-13
overdue since 2022-06-13
EPSS exploit probability (next 30 days)68.1% · 99percentile
From CVE publication to KEV listing853 days (2020-01-21 → 2022-05-23)
Remediation window (KEV listing to due date)21 days
Days on the KEV list1633 days
Date added to KEV2022-05-23
Known ransomware campaign useUnknown
VendorMeta Platforms
ProductWhatsApp
Weaknesses (CWE)CWE-79

Meta Platforms: 3 entries (0.2% of all KEV entries are from this vendor); 0 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your remediation window ends:

Description

A vulnerability in WhatsApp Desktop when paired with WhatsApp for iPhone allows cross-site scripting and local file reading.

Required action (CISA)

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2019-18426

References

Other KEV entries for this vendor: Meta Platforms

Meta Platforms - Vendors with KEV entries

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