CVE-2026-23863 (GCVE-0-2026-23863)

Vulnerability from cvelistv5 – Published: 2026-05-01 16:01 – Updated: 2026-05-01 17:41
VLAI
Summary
An attachment spoofing issue in WhatsApp for Windows prior to v2.3000.1032164386.258709 could have allowed maliciously formatted documents with embedded NUL bytes in the filename to be shown in the application as one type of file but run as an executable when opened. We have not seen evidence of exploitation in the wild.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:F/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-01 17:40 UTC
CWE
  • Improper Neutralization of Null Byte or NUL Character (CWE-158)
  • CWE-158 - Improper Neutralization of Null Byte or NUL Character
Assigner
Meta CNA under the mitre root
CNA scorecard – unranked: 9 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version CPE status
Facebook WhatsApp Desktop for Windows Affected: 2.3000.*.252500 , < 2.3000.1032164386.258709 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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