CVE-2026-55729 PUBLISHED

Loytec LWEB802: Exposure of Sensitive Information in browser localStorage

Assigner: NCSC.ch
Reserved: 17.06.2026 Published: 24.07.2026 Updated: 24.07.2026

Exposure of Sensitive Information (CWE-200) in LWEB802 browser localStorage in Loytec LWEB-802 before 5.0.8 on all platforms allows an unauthenticated remote attacker to leak stored management credentials via a crafted link.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score: 7.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	High	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	Loytec
Product	LWEB-802
Versions	Default: unaffected affected from 0 to 5.0.8 (excl.)

Solutions

Update to LWEB-802 version 5.0.8.

Credits

Daniel Hulliger, armasuisse CYD Campus finder
Damian Pfammatter, armasuisse CYD Campus finder

References

https://www.loytec.com/support/product-security/advisories/8526-dibt-cve-20260601-0001-exposure-of-credentials-stored-in-browser-local-storage-high

Problem Types

CWE-200 Exposure of sensitive information to an unauthorized actor CWE

Impacts

CAPEC-98 Phishing
CAPEC-173 Action Spoofing