CVE-2026-20991
Quick assessment
Affected
Samsung Mobile Samsung Mobile Devices
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.
SAMSUNG ThemeManager是韩国三星（SAMSUNG）公司的一款主题管理工具。 Samsung ThemeManager SMR Mar-2026 Release 1之前版本存在安全漏洞，该漏洞源于权限管理不当，可能导致本地特权攻击者重用试用内容。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2026-20991
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Improper privilege management in ThemeManager prior to SMR Mar-2026 Release 1 allows local privileged attackers to reuse trial contents.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
SAMSUNG ThemeManager 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SAMSUNG ThemeManager是韩国三星（SAMSUNG）公司的一款主题管理工具。 Samsung ThemeManager SMR Mar-2026 Release 1之前版本存在安全漏洞，该漏洞源于权限管理不当，可能导致本地特权攻击者重用试用内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Samsung Mobile | Samsung Mobile Devices | SMR Mar-2026 Release in Android 14, 15, 16 | - |
|
II. Public POCs for CVE-2026-20991
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-20991 (1)
Same Patch Batch · Samsung Mobile · 2026-03-16 · 17 CVEs total
| CVE-2026-21005 | SAMSUNG Smart Switch 安全漏洞 | |
| CVE-2026-21004 | SAMSUNG Smart Switch 安全漏洞 | |
| CVE-2026-21002 | SAMSUNG Galaxy Store 安全漏洞 | |
| CVE-2026-21001 | SAMSUNG Galaxy Store 安全漏洞 | |
| CVE-2026-21000 | SAMSUNG Galaxy Store 安全漏洞 | |
| CVE-2026-20999 | SAMSUNG Smart Switch 安全漏洞 | |
| CVE-2026-20998 | SAMSUNG Smart Switch 安全漏洞 | |
| CVE-2026-20997 | SAMSUNG Smart Switch 安全漏洞 | |
| CVE-2026-20996 | SAMSUNG Smart Switch 安全漏洞 | |
| CVE-2026-20995 | SAMSUNG Smart Switch 安全漏洞 | |
| CVE-2026-20994 | SAMSUNG Account 安全漏洞 | |
| CVE-2026-20993 | SAMSUNG Assistant 安全漏洞 | |
| CVE-2026-20992 | SAMSUNG Settings 安全漏洞 | |
| CVE-2026-20990 | SAMSUNG Secure Folder 安全漏洞 | |
| CVE-2026-20989 | SAMSUNG Font Settings 安全漏洞 | |
| CVE-2026-20988 | SAMSUNG Settings 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-20991
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