CVE-2025-21440

HIGH
2025-04-07 [email protected]
7.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 18:35 vuln.today
CVE Published
Apr 07, 2025 - 11:15 nvd
HIGH 7.8

Tags

Memory Corruption Buffer Overflow Aqt1000 Firmware Fastconnect 6200 Firmware Fastconnect 6700 Firmware Fastconnect 6800 Firmware Fastconnect 6900 Firmware Fastconnect 7800 Firmware Qca1062 Firmware Qca1064 Firmware Qca2062 Firmware Qca2064 Firmware Qca2065 Firmware Qca2066 Firmware Qca6391 Firmware Qca6420 Firmware Qca6430 Firmware Qcc2073 Firmware Qcc2076 Firmware Qcm5430 Firmware Qcm6490 Firmware Qcs5430 Firmware Qcs6490 Firmware Video Collaboration Vc3 Platform Firmware Sc8180X Sdx55 Firmware Sc8380xp Firmware Sm6250 Firmware Snapdragon 7C Compute Platform Sc7180 Ac Firmware Snapdragon 7C Gen 2 Compute Platform Sc7180 Ad Rennell Pro Firmware Snapdragon 7C Gen 3 Compute Firmware Snapdragon 8C Compute Platform Sc8180X Ad Firmware Snapdragon 8C Compute Platform Sc8180Xp Ad Firmware Snapdragon 8Cx Compute Platform Sc8180X Aa Firmware Snapdragon 8Cx Compute Platform Sc8180X Ab Firmware Snapdragon 8Cx Compute Platform Sc8180Xp Ac Firmware Snapdragon 8Cx Compute Platform Sc8180Xp Af Firmware Snapdragon 8Cx Gen 2 5G Compute Platform Sc8180X Ac Firmware Snapdragon 8Cx Gen 2 5G Compute Platform Sc8180X Af Firmware Snapdragon 8Cx Gen 2 5G Compute Platform Sc8180Xp Aa Firmware Snapdragon 8Cx Gen 2 5G Compute Platform Sc8180Xp Ab Firmware Wcd9340 Firmware Wcd9341 Firmware Wcd9370 Firmware Wcd9375 Firmware Wcd9380 Firmware Wcd9385 Firmware Wsa8810 Firmware Wsa8815 Firmware Wsa8840 Firmware Wsa8845 Firmware Wsa8845h Firmware

Description

Memory corruption when IOCTL call is invoked from user-space to write board data to WLAN driver.

Analysis

Memory corruption when IOCTL call is invoked from user-space to write board data to WLAN driver. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. Memory corruption when IOCTL call is invoked from user-space to write board data to WLAN driver. Affected products include: Qualcomm Aqt1000 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware.

Affected Products

Qualcomm Aqt1000 Firmware, Qualcomm Fastconnect 6200 Firmware, Qualcomm Fastconnect 6700 Firmware, Qualcomm Fastconnect 6800 Firmware, Qualcomm Fastconnect 6900 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +39
POC: 0

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CVE-2025-21440 vulnerability details – vuln.today
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