Vulnerability in Qualcomm Wcn3988 Firmware
CVSS score
7.8
EPSS probability
%0.1
Risk score
0.0
Published
6 mo ago
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Impact on My Inventory
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Vulnerability description
DayBreach CVE AI Research
CVE-2026-21375 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
Memory Corruption when accessing an output buffer without validating its size during IOCTL processing.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-21375 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | qualcomm | wcn3988 firmware | View |
| 2 | qualcomm | wcn3988 | View |
| 3 | qualcomm | wsa8830 firmware | View |
| 4 | qualcomm | wsa8830 | View |
| 5 | qualcomm | wsa8832 firmware | View |
| 6 | qualcomm | wsa8832 | View |
| 7 | qualcomm | wsa8835 firmware | View |
| 8 | qualcomm | wsa8835 | View |
| 9 | qualcomm | wsa8840 firmware | View |
| 10 | qualcomm | wsa8840 | View |
| 11 | qualcomm | wsa8845 firmware | View |
| 12 | qualcomm | wsa8845 | View |
| 13 | qualcomm | wsa8845h firmware | View |
| 14 | qualcomm | wsa8845h | View |
| 15 | qualcomm | x2000077 firmware | View |
| 16 | qualcomm | x2000077 | View |
| 17 | qualcomm | x2000086 firmware | View |
| 18 | qualcomm | x2000086 | View |
| 19 | qualcomm | x2000090 firmware | View |
| 20 | qualcomm | x2000090 | View |
| 21 | qualcomm | x2000092 firmware | View |
| 22 | qualcomm | x2000092 | View |
| 23 | qualcomm | x2000094 firmware | View |
| 24 | qualcomm | x2000094 | View |
| 25 | qualcomm | xg101002 firmware | View |
| 26 | qualcomm | xg101002 | View |
| 27 | qualcomm | xg101032 firmware | View |
| 28 | qualcomm | xg101032 | View |
| 29 | qualcomm | xg101039 firmware | View |
| 30 | qualcomm | xg101039 | View |
| 31 | qualcomm | wcn3950 firmware | View |
| 32 | qualcomm | wcn3950 | View |
| 33 | qualcomm | wcd9385 firmware | View |
| 34 | qualcomm | wcd9385 | View |
| 35 | qualcomm | wcd9380 firmware | View |
| 36 | qualcomm | wcd9380 | View |
| 37 | qualcomm | wcd9378c firmware | View |
| 38 | qualcomm | wcd9378c | View |
| 39 | qualcomm | wcd9375 firmware | View |
| 40 | qualcomm | wcd9375 | View |
| 41 | qualcomm | wcd9370 firmware | View |
| 42 | qualcomm | wcd9370 | View |
| 43 | qualcomm | snapdragon ar1 gen 1 platform firmware | View |
| 44 | qualcomm | snapdragon ar1 gen 1 platform | View |
| 45 | qualcomm | snapdragon 8cx gen 3 compute platform firmware | View |
| 46 | qualcomm | snapdragon 8cx gen 3 compute platform | View |
| 47 | qualcomm | snapdragon 7c+ gen 3 compute firmware | View |
| 48 | qualcomm | snapdragon 7c+ gen 3 compute | View |
| 49 | qualcomm | snapdragon 662 mobile platform firmware | View |
| 50 | qualcomm | snapdragon 662 mobile platform | View |
| 51 | qualcomm | snapdragon 460 mobile platform firmware | View |
| 52 | qualcomm | snapdragon 460 mobile platform | View |
| 53 | qualcomm | sc8380xp firmware | View |
| 54 | qualcomm | sc8380xp | View |
| 55 | qualcomm | video collaboration vc3 platform firmware | View |
| 56 | qualcomm | video collaboration vc3 platform | View |
| 57 | qualcomm | qcm6490 firmware | View |
| 58 | qualcomm | qcm6490 | View |
| 59 | qualcomm | qcm5430 firmware | View |
| 60 | qualcomm | qcm5430 | View |
| 61 | qualcomm | qca0000 firmware | View |
| 62 | qualcomm | qca0000 | View |
| 63 | qualcomm | fastconnect 7800 firmware | View |
| 64 | qualcomm | fastconnect 7800 | View |
| 65 | qualcomm | fastconnect 6900 firmware | View |
| 66 | qualcomm | fastconnect 6900 | View |
| 67 | qualcomm | fastconnect 6700 firmware | View |
| 68 | qualcomm | fastconnect 6700 | View |
| 69 | qualcomm | cologne firmware | View |
| 70 | qualcomm | cologne | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.8 | CVSS V31 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-21375 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-21375 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-21375"