What’s Vulnerable › Vulnerabilities

CVE-2023-21640: Buffer Copy Without Checking Size of Input in Linux

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-07-04 · updated 2026-06-17
• Weakness: CWE-120

Description

Memory corruption in Linux when the file upload API is called with parameters having large buffer.

Affected products

• Qualcomm Fastconnect 6900 Firmware: all versions
• Qualcomm Fastconnect 7800 Firmware: all versions
• Qualcomm Snapdragon 8 Gen 1 Firmware: all versions
• Qualcomm Wcd9380 Firmware: all versions
• Qualcomm Wsa8830 Firmware: all versions
• Qualcomm Wsa8835 Firmware: all versions

References

• https://www.qualcomm.com/company/product-security/bulletins/july-2023-bulletin
• https://www.qualcomm.com/company/product-security/bulletins/july-2023-bulletin

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