CVE-2026-77882

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.

在联想系统更新（Lenovo System Update）中发现了一个不可信数据反序列化漏洞，该漏洞可能允许本地已认证用户以提升的权限执行代码。

CVSS 7.8 · High Updated Nov 12, 2026

Possible ATT&CK Techniques 2 AI

T1068.001 T1190 · Exploit Public-Facing Application

Get alerts for future matching vulnerabilities Log in to subscribe

Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title

N/A

Source: CVE Program / CVE List V5

Vulnerability Description

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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

可信数据的反序列化

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-2026-77882

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-77882

请登录查看更多情报信息。

Other References for CVE-2026-77882 (2)

https://support.lenovo.com/us/en/downloads/ds012808 product
https://support.lenovo.com/us/en/product_security/LEN-232748 vendor-advisory

https://www.cve.org/CVERecord?id=CVE-2026-77882

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-2026-77873	7.3 HIGH	Lenovo System Update 权限不当导致提权漏洞
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

IV. Related Vulnerabilities

Same product: System Update

Same vendor: Lenovo

Same weakness: CWE-502