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High severity · published Aug 6, 2025
CVE-2025-21455
Memory corruption while submitting blob data to kernel space though IOCTL
7.8
CVSS
0.1%
EPSS
No
On KEV
Description
Memory corruption while submitting blob data to kernel space though IOCTL.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 0% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
F6
Fastconnect 6800 Firmware · Qualcomm
All versions, or not specified · source: NVD
F6
Fastconnect 6900 Firmware · Qualcomm
All versions, or not specified · source: NVD
F7
Fastconnect 7800 Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6391 Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6426 Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qca6436 Firmware · Qualcomm
All versions, or not specified · source: NVD
QF
Qsm8250 Firmware · Qualcomm
All versions, or not specified · source: NVD
S5
Sd865 5g Firmware · Qualcomm
All versions, or not specified · source: NVD
SF
Sdx55 Firmware · Qualcomm
All versions, or not specified · source: NVD
S8
Snapdragon 8 Gen 1 Mobile Platform Firmware · Qualcomm
All versions, or not specified · source: NVD
S8
Snapdragon 865 5g Mobile Platform Firmware · Qualcomm
All versions, or not specified · source: NVD
S8
Snapdragon 865+ 5g Mobile Platform (sm8250-ab) Firmware · Qualcomm
All versions, or not specified · source: NVD
Affected product
F6
Fastconnect 6800 Firmware
Qualcomm
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-21455
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-21455
Vendor Advisory
https://docs.qualcomm.com/product/publicresources/securitybulletin/august-2025-bulletin.html
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