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CVE-2026-21068

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 Mobile devices是韩国SAMSUNG公司的一系列移动安全设备。 SAMSUNG Mobile devices SMR Aug-2026 Release 1之前版本存在缓冲区错误漏洞，该漏洞源于libril_sem.so存在栈缓冲区溢出，可能导致特权本地攻击者执行任意代码。

CVSS 8.4 · High EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 1

VendorProduct Version RangeStatus
Samsung Mobile Samsung Mobile Devices SMR Aug-2026 Release in Android 14, 15, 16< * unaffected
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I. Basic Information for CVE-2026-21068

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Stack-based buffer overflow in libril_sem.so prior to SMR Aug-2026 Release 1 allows privileged local attackers to execute arbitrary code.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/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 Mobile devices 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SAMSUNG Mobile devices是韩国SAMSUNG公司的一系列移动安全设备。 SAMSUNG Mobile devices SMR Aug-2026 Release 1之前版本存在缓冲区错误漏洞，该漏洞源于libril_sem.so存在栈缓冲区溢出，可能导致特权本地攻击者执行任意代码。
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 Aug-2026 Release in Android 14, 15, 16 ~ * -

II. Public POCs for CVE-2026-21068

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III. Intelligence Information for CVE-2026-21068

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Vendor Advisories for CVE-2026-21068 (1)

Same Patch Batch · Samsung Mobile · 2026-08-10 · 27 CVEs total

CVE-2026-21074 7.2 HIGH SAMSUNG Bixby 权限许可和访问控制问题漏洞
CVE-2026-21079 7.0 HIGH SAMSUNG Smart Switch 加密问题漏洞
CVE-2026-21064 7.0 HIGH SAMSUNG Mobile devices 权限许可和访问控制问题漏洞
CVE-2026-21059 6.9 MEDIUM SAMSUNG Mobile devices 权限许可和访问控制问题漏洞
CVE-2026-21084 6.9 MEDIUM SAMSUNG smartthings 权限许可和访问控制问题漏洞
CVE-2026-21082 6.9 MEDIUM SAMSUNG Health 路径遍历漏洞
CVE-2026-21080 6.9 MEDIUM SAMSUNG Smart Switch 加密问题漏洞
CVE-2026-21077 6.9 MEDIUM SAMSUNG Health 授权问题漏洞
CVE-2026-21076 6.9 MEDIUM SAMSUNG Health 授权问题漏洞
CVE-2026-21058 6.9 MEDIUM SAMSUNG Mobile devices 输入验证错误漏洞
CVE-2026-21083 6.8 MEDIUM SAMSUNG Smart Switch 输入验证错误漏洞
CVE-2026-21063 6.8 MEDIUM SAMSUNG Mobile devices 权限许可和访问控制问题漏洞
CVE-2026-21060 6.7 MEDIUM SAMSUNG Mobile devices 输入验证错误漏洞
CVE-2026-21061 6.0 MEDIUM SAMSUNG Mobile devices 输入验证错误漏洞
CVE-2026-21075 5.3 MEDIUM SAMSUNG My Galaxy 授权问题漏洞
CVE-2026-21073 5.2 MEDIUM SAMSUNG Mobile devices 输入验证错误漏洞
CVE-2026-21069 5.1 MEDIUM SAMSUNG Mobile devices 数字错误漏洞
CVE-2026-21081 5.1 MEDIUM SamsungPassAutofill 权限许可和访问控制问题漏洞
CVE-2026-21066 5.1 MEDIUM SAMSUNG Mobile devices 输入验证错误漏洞
CVE-2026-21072 5.1 MEDIUM SAMSUNG Mobile devices 输入验证错误漏洞

Showing top 20 of 27 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Samsung Mobile Devices
Same vendor: Samsung Mobile

V. Comments for CVE-2026-21068

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