CVE-2026-21078
MEDIUM 4.7Insufficient verification of data authenticity in Smart Switch trouble scanning mode prior to version 3.7.72.6 allows adjacent attackers to spoof device identity.
NO EXPLOITATION SIGNALS
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.1%chance of exploitation in 30 days · 1st percentile
○ In CISA KEV
○ Public exploit / PoC
Impact if exploited
4.7CVSS 4.0 · MEDIUM
- ConfidentialityLow
- IntegrityLow
- AvailabilityLow
What an attacker needs
- ⚠Access: Must sit on the same / adjacent network
- ⚠Privileges: Requires a low-privilege account
- ⚠User interaction: Requires active user interaction
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept & exploit code
- github-search Search GitHub for public PoC repos
Test against your own equipment
curl -s https://vulnpedia.com/cve/CVE-2026-21078/poc.jsonMachine-readable PoC index for this CVE (for automation).Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-21078/poc.json
Weakness (CWE)
- CWE-345: Insufficient Verification of Data Authenticity
CVSS vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Samsung | Smart Switch | < 3.7.72.6 |
All CVSS metrics
- MEDIUM 4.7 v4.0 · CNA Primary
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H - MEDIUM 4.7 v4.0 · NVD Secondary
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - MEDIUM 6.5 v3.1 · NVD Primary
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N