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

CVE-2023-21640

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.

MEDIUM · CVSS 6.7 EPSS 0.00034
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

6
qualcomm fastconnect 6900 firmwareall versions
qualcomm fastconnect 7800 firmwareall versions
qualcomm snapdragon 8 gen 1 firmwareall versions
qualcomm wcd9380 firmwareall versions
qualcomm wsa8830 firmwareall versions
qualcomm wsa8835 firmwareall versions
▣

Scoring & Timeline

6.7
MEDIUM · CVSS v3.1 · product-security@qualcomm.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD04 Jul 2023 · 05:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.qualcomm.com/company/product-security/bulletins/july-2023-bulletinVendor Advisory
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