Vulnerability · Published Aug 13, 2026 · Assigned by lenovo
CVE-2026-6387
High 7.0
In plain English
A high-severity authentication bypass by spoofing in System Update from Lenovo. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).
Severity (CVSS 3.1)7.0High
Exploit odds (30 days)0.2%top 93.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A potential authentication bypass vulnerability was reported in Lenovo System Update that could allow a local authenticated user to execute arbitrary code with elevated privileges.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Lenovo | System Update | 0 – before 5.08.04.85 |
Weakness: CWE-290 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://support.lenovo.com/us/en/product_security/LEN-213316 vendor-advisory
- https://support.lenovo.com/us/en/solutions/ht037099 product, patch