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CVE-2025-20704

Quick assessment

Affected
MediaTek, Inc. MT6813, MT6835, MT6835T, MT6878, MT6878M, MT6897, MT6899, MT6991, MT8676, MT8678, MT8792, MT8863, MT8873, MT8883
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.

MediaTek Modem是中国联发科（MediaTek）公司的一个 5G 调制解调器技术。 MediaTek Modem存在缓冲区错误漏洞，该漏洞源于缺少边界检查导致越界写入，可能导致远程权限提升。

AI Predicted 8.8 Difficulty: Moderate EPSS 0.30% · P23

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions
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I. Basic Information for CVE-2025-20704

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01516959; Issue ID: MSV-3502.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
MediaTek Modem 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MediaTek Modem是中国联发科（MediaTek）公司的一个 5G 调制解调器技术。 MediaTek Modem存在缓冲区错误漏洞，该漏洞源于缺少边界检查导致越界写入，可能导致远程权限提升。
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
MediaTek, Inc. MT6813, MT6835, MT6835T, MT6878, MT6878M, MT6897, MT6899, MT6991, MT8676, MT8678, MT8792, MT8863, MT8873, MT8883 Modem NR17, NR17R -

II. Public POCs for CVE-2025-20704

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III. Intelligence Information for CVE-2025-20704

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Other References for CVE-2025-20704 (1)

Same Patch Batch · MediaTek, Inc. · 2025-09-01 · 6 CVEs total

CVE-2025-20707 MediaTek Modem 资源管理错误漏洞
CVE-2025-20706 MediaTek Modem 资源管理错误漏洞
CVE-2025-20705 MediaTek Modem 资源管理错误漏洞
CVE-2025-20703 MediaTek Modem 缓冲区错误漏洞
CVE-2025-20708 MediaTek Modem 缓冲区错误漏洞

IV. Related Vulnerabilities

Same vendor: MediaTek, Inc.
Same weakness: CWE-787

V. Comments for CVE-2025-20704

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