CVE-2026-77873
Quick assessment
Affected
Lenovo System Update
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Lenovo System Update 中存在一个权限配置不当的漏洞，该漏洞可能允许本地已认证用户以提升的权限执行代码。
Possible ATT&CK Techniques 2 AI
T1548 · Abuse Elevation Control Mechanism T1548.005 · Temporary Elevated Cloud Access
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I. Basic Information for CVE-2026-77873
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An improper permissions vulnerability was reported in Lenovo System Update that could allow a local authenticated user to execute code with elevated privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Lenovo | System Update | 0 ~ 5.08.03.59 | - |
|
II. Public POCs for CVE-2026-77873
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Other References for CVE-2026-77873 (2)
-
https://support.lenovo.com/us/en/product_security/LEN-232748 vendor-advisory
Same Patch Batch · Lenovo · 2026-11-11 · 5 CVEs total
| CVE-2026-89061 | 7.8 HIGH | 联想电脑管家本地提权漏洞 |
| CVE-2026-77882 | 7.8 HIGH | Lenovo System Update 反序列化漏洞致本地提权 |
| CVE-2026-116633 | 7.1 HIGH | Lenovo 平板任意文件写入漏洞 |
| CVE-2026-119238 | 3.3 LOW | 联想联想棒软件不当权限漏洞 |