CVE-2026-23863

MEDIUM EPSS 40.7%
Published May 1, 20262mo ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published May 1, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
40.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-158

Affected Products 1

VendorProductVersionRange
whatsappwhatsapp* <2.3000.1032164386.258709

References 2

  • facebook.com https://www.facebook.com/security/advisories/cve-2026-23863
    Third Party Advisory
  • whatsapp.com https://www.whatsapp.com/security/advisories/2026
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.