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7.8

CVE-2023-21640: Memory corruption in Linux when the file upload API is called with parameters having large buffer.

CVE-2023-21640 · published 3 years ago
Summary

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

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
qualcomm fastconnect_6900_firmware All versions
cpe:2.3:o:qualcomm:fastconnect_6900_firmware:-:*:*:*:*:*:*:*
qualcomm fastconnect_7800_firmware All versions
cpe:2.3:o:qualcomm:fastconnect_7800_firmware:-:*:*:*:*:*:*:*
qualcomm snapdragon_8_gen_1_firmware All versions
cpe:2.3:o:qualcomm:snapdragon_8_gen_1_firmware:-:*:*:*:*:*:*:*
qualcomm wcd9380_firmware All versions
cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:*
qualcomm wsa8830_firmware All versions
cpe:2.3:o:qualcomm:wsa8830_firmware:-:*:*:*:*:*:*:*
qualcomm wsa8835_firmware All versions
cpe:2.3:o:qualcomm:wsa8835_firmware:-:*:*:*:*:*:*:*
Original advisory text
Memory corruption in Linux when the file upload API is called with parameters having large buffer.
Memory corruption in Linux when the file upload API is called with parameters having large buffer.
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
7.8 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-120Classic Buffer Overflow
CWE-787Out-of-bounds Write
Timeline
Published4 Jul 2023
Updated26 Oct 2026
First seen29 Sep 2026
Sources
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