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Fastconnect 6900 Firmware CVE-2025-27058

| EUVDEUVD-2025-20476 HIGH
Classic Buffer Overflow (CWE-120)
2025-07-08 product-security@qualcomm.com
Buffer Overflow Fastconnect 6900 Firmware Fastconnect 7800 Firmware Sc8380xp Firmware Wcd9380 Firmware Wcd9385 Firmware Wsa8840 Firmware Wsa8845 Firmware Wsa8845h Firmware
7.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

3
EUVD ID Assigned
Mar 16, 2026 - 04:21 euvd
EUVD-2025-20476
Analysis Generated
Mar 16, 2026 - 04:21 vuln.today
CVE Published
Jul 08, 2025 - 13:15 nvd
HIGH 7.8

DescriptionCVE.org

Memory corruption while processing packet data with exceedingly large packet.

Analysis

Memory corruption while processing packet data with exceedingly large packet.

Technical ContextAI

A buffer overflow occurs when data written to a buffer exceeds its allocated size, potentially overwriting adjacent memory and corrupting program state. This vulnerability is classified as Classic Buffer Overflow (CWE-120).

RemediationAI

Use memory-safe languages or bounds-checked functions. Enable ASLR, DEP/NX, and stack canaries. Apply vendor patches promptly.

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Same weakness CWE-120 – Classic Buffer Overflow

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Same technique Buffer Overflow

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CVE-2025-27058 vulnerability details – vuln.today
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