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CVE-2026-20461

Quick assessment

Affected
MediaTek, Inc. MediaTek chipset
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 chipset是MediaTek公司的一款芯片组产品。 MediaTek chipset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，可能导致用户设备连接到攻击者控制的恶意基站时遭受远程拒绝服务攻击。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.28% · P19

Possible ATT&CK Techniques 1 AI

T1498.002 · Reflection Amplification

Affected Version Matrix 33

VendorProduct Version RangeStatus
MediaTek, Inc. MediaTek chipset MT2737 affected
MT6813 affected
MT6835 affected
MT6858 affected
MT6878 affected
MT6879 affected
MT6886 affected
MT6895 affected
… +25 more rows
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I. Basic Information for CVE-2026-20461

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 denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01267281 / MOLY01318201; Issue ID: MSV-6486.
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 chipset 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MediaTek chipset是MediaTek公司的一款芯片组产品。 MediaTek chipset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，可能导致用户设备连接到攻击者控制的恶意基站时遭受远程拒绝服务攻击。
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. MediaTek chipset MT2737 -

II. Public POCs for CVE-2026-20461

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III. Intelligence Information for CVE-2026-20461

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Vendor Advisories for CVE-2026-20461 (1)

Same Patch Batch · MediaTek, Inc. · 2026-07-01 · 7 CVEs total

CVE-2026-20457 MediaTek chipset 异常处理不当漏洞
CVE-2026-20458 MediaTek chipset 缓冲区错误漏洞
CVE-2026-20459 MediaTek chipset 授权问题漏洞
CVE-2026-20460 MediaTek chipset 授权问题漏洞
CVE-2026-20462 MediaTek chipset 缓冲区错误漏洞
CVE-2026-20463 MediaTek chipset 权限许可和访问控制问题漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-20461

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