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NVD Vulnerability Details :
CVE-2026-23863
Analyzed
More InfoOfficial Page
Source-cve-assign@fb.com
View Known Exploited Vulnerability (KEV) details
Published At-01 May, 2026 | 16:16
Updated At-11 May, 2026 | 19:59

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Type: Secondary
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CPE Matches
WhatsApp LLC
whatsapp
>>whatsapp>>Versions before 2.3000.1032164386.258709(exclusive)
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:windows:*:*
Weaknesses
CWE IDTypeSource
CWE-158Secondary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-158
Type: Secondary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://www.facebook.com/security/advisories/cve-2026-23863cve-assign@fb.com
Third Party Advisory
https://www.whatsapp.com/security/advisories/2026cve-assign@fb.com
Vendor Advisory
Hyperlink: https://www.facebook.com/security/advisories/cve-2026-23863
Source: cve-assign@fb.com
Resource:
Third Party Advisory
Hyperlink: https://www.whatsapp.com/security/advisories/2026
Source: cve-assign@fb.com
Resource:
Vendor Advisory
Change History
0Changes found
Details not found