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CVE-2025-21427— Buffer Over-read in Data HLOS - LNX

Quick assessment

Affected
Qualcomm, Inc. Snapdragon
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.

Qualcomm Chipsets是美国高通（Qualcomm）公司的一系列芯片组。 Qualcomm Chipsets 存在安全漏洞，该漏洞源于解码RTP数据包有效载荷时存在信息泄露。

CVSS 8.2 · High EPSS 0.22% · P11
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I. Basic Information for CVE-2025-21427

Vulnerability Information
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Vulnerability Title
Buffer Over-read in Data HLOS - LNX
Source: CVE Program / CVE List V5
Vulnerability Description
Information disclosure while decoding this RTP packet Payload when UE receives the RTP packet from the network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
缓冲区上溢读取
Source: CVE Program / CVE List V5
Vulnerability Title
Payload和form 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Qualcomm Chipsets是美国高通（Qualcomm）公司的一系列芯片组。 Qualcomm Chipsets 存在安全漏洞，该漏洞源于解码RTP数据包有效载荷时存在信息泄露。
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
Qualcomm, Inc. Snapdragon APQ8064AU -

II. Public POCs for CVE-2025-21427

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III. Intelligence Information for CVE-2025-21427

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Vendor Advisories for CVE-2025-21427 (1)

Same Patch Batch · Qualcomm, Inc. · 2025-07-08 · 26 CVEs total

CVE-2025-21450 9.1 CRITICAL Improper Authentication in GPS_GNSS
CVE-2025-27058 7.8 HIGH Buffer Copy Without Checking Size of Input in Computer Vision
CVE-2025-21432 7.8 HIGH Double Free in SPS-HLOS
CVE-2025-21444 7.8 HIGH Buffer Copy Without Checking Size of Input (`Classic Buffer Overflow`) in Data HLOS - QX
CVE-2025-21445 7.8 HIGH Buffer Copy Without Checking Size of Input (`Classic Buffer Overflow`) in Data HLOS - QX
CVE-2025-21466 7.8 HIGH Use After Free in Display
CVE-2025-27042 7.8 HIGH Incorrect Calculation of Buffer Size in Video
CVE-2025-27043 7.8 HIGH Buffer Copy Without Checking Size of Input in Video
CVE-2025-27044 7.8 HIGH Out-of-bounds Write in Video
CVE-2025-27046 7.8 HIGH Double Free in Display
CVE-2025-27047 7.8 HIGH Use After Free in Display
CVE-2025-27050 7.8 HIGH Use After Free in Camera
CVE-2025-27051 7.8 HIGH Double Free in Windows WLAN Host
CVE-2025-27052 7.8 HIGH Buffer Copy Without Checking Size of Input in Core Services
CVE-2025-27055 7.8 HIGH Buffer Over-read in Camera
CVE-2025-27056 7.8 HIGH Use After Free in DSP Service
CVE-2025-27061 7.8 HIGH Out-of-bounds Write in Video
CVE-2025-21454 7.5 HIGH Buffer Over-read in WLAN Embedded SW
CVE-2025-21449 7.5 HIGH Buffer Over-read in WLAN Embedded SW
CVE-2025-21446 7.5 HIGH Buffer Over-read in WLAN Firmware

Showing top 20 of 26 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Snapdragon
Same vendor: Qualcomm, Inc.
Same weakness: CWE-126

V. Comments for CVE-2025-21427

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