CYBERSIXT Signal Over Noise
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Vulnerability intelligence

CVE-2026-23863

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 Score
6.5
Medium
EPSS — Exploit Probability
0.5%
Riskier than 41% of all CVEs
Exploitation
Not in CISA KEV
No federal exploitation record
Remediation
unknown
Check vendor advisories
NVD entry PoC / advisory

1 article across 1 outlet · first covered May 5, 2026 · latest May 5, 2026

Coverage timeline