CVE-2026-23863: facebook whatsapp desktop for windows
CVSS: 6.5v3.1MediumAnalyzed
Published 01-05-2026Last modified 01-05-2026
Vulnerability summary
CVE-2026-23863 is a medium (CVSS 6.5) vulnerability in facebook whatsapp desktop for windows. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.8% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.53%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 01-05-2026PublishedVulnerability first disclosed.
- 01-05-2026Last modifiedVulnerability information updated.
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 metrics
2 scores · 2 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:F/RL:O/RC:CSourcesAll 2 agree
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.53%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
0.00 pp
From 0.53% on 21-09-2026
21-09-202621-10-2026
EPSS score0.53%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Facebook1 product
- whatsapp desktop for windows≥ 2.3000.*.252500, < 2.3000.1032164386.258709
Whatsapp1 product
- whatsapp< 2.3000.1032164386.258709
2 vendors · 2 products