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CVE

CVE-2025-21455

Memory corruption while submitting blob data to kernel space though IOCTL.

Memory corruption while submitting blob data to kernel space though IOCTL.

HIGH · CVSS 7.8 EPSS 0.00053
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
▤

Affected Products & Versions

29
qualcomm fastconnect 6800 firmwareall versions
qualcomm fastconnect 6900 firmwareall versions
qualcomm fastconnect 7800 firmwareall versions
qualcomm qca6391 firmwareall versions
qualcomm qca6426 firmwareall versions
qualcomm qca6436 firmwareall versions
qualcomm qsm8250 firmwareall versions
qualcomm sd865 5g firmwareall versions
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · product-security@qualcomm.com
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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 NVD06 Aug 2025 · 08:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/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://docs.qualcomm.com/product/publicresources/securitybulletin/august-2025-bulletin.htmlVendor Advisory
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