CVE-2026-100420
MEDIUM 6.8A sensitive information disclosure vulnerability in the cloud-client daemon of Deco BE63 allows authenticated attackers to retrieve the plaintext TP-Link ID account password. Successful exploitation may allow attackers to compromise the associated cloud account and perform unauthorized actions on behalf of the affected user.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 5th percentile
Impact if exploited
6.8CVSS 4.0 · MEDIUM
- ConfidentialityHigh
- IntegrityNone
- AvailabilityNone
What an attacker needs
- ⚠Access: Must sit on the same / adjacent network
- ⚠Privileges: Requires an admin / high-privilege account
- ✓User interaction: No user interaction needed
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
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Data snapshot:
Weakness (CWE)
- CWE-202: Exposure of sensitive information through data queries
CVSS vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
References and research data (JSON)
All CVSS metrics
- MEDIUM 6.8 v4.0 · CNA Primary
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - MEDIUM 6.8 v4.0 · NVD Secondary
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/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
References
Patches & mitigations
- https://www.tp-link.com/us/support/download/deco-be63/v2.60/#Firmware CVE record · TPLink · Updated 2026-10-21T23:04:28.083Z
NVD · CVE-2026-100420 · Updated 2026-10-22T15:31:24.813
Advisories
- https://www.tp-link.com/us/support/faq/5357/ CVE record · TPLink · Updated 2026-10-21T23:04:28.083Z
NVD · CVE-2026-100420 · Updated 2026-10-22T15:31:24.813 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-107633 EUVD · EUVD-2026-107633