CVE-2026-77882

EUVD-2026-123575
A deserialization of untrusted data vulnerability was discovered in Lenovo System Update that could allow a local authenticated user to execute code with elevated privileges.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
lenovoCNA
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
lenovosystem_update
𝑥
≤ 5.8.3.59
CNA
Common Weakness Enumeration
References
https://support.lenovo.com/us/en/downloads/ds012808
https://support.lenovo.com/us/en/product_security/LEN-232748