CVE-2021-30321
CRITICALCVSS 9.8/10EPSS 0.76%
Last modified
CVE-2021-30321 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Possible buffer overflow due to lack of parameter length check during MBSSID scan IE parse in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity. EPSS estimates a 0.76% chance of exploitation in the next 30 days.
Description
Possible buffer overflow due to lack of parameter length check during MBSSID scan IE parse in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Qualcomm | Aqt1000 Firmware | All versions |
| Qualcomm | Qca1062 Firmware | All versions |
| Qualcomm | Qca1064 Firmware | All versions |
| Qualcomm | Qca2066 Firmware | All versions |
| Qualcomm | Qca6320 Firmware | All versions |
| Qualcomm | Qca6391 Firmware | All versions |
| Qualcomm | Qca6420 Firmware | All versions |
| Qualcomm | Qca6430 Firmware | All versions |
| Qualcomm | Sc8280xp Firmware | All versions |
| Qualcomm | Sd 8cx Firmware | All versions |
| Qualcomm | Wcd9340 Firmware | All versions |
| Qualcomm | Wcd9341 Firmware | All versions |
| Qualcomm | Wcd9380 Firmware | All versions |
| Qualcomm | Wcd9385 Firmware | All versions |
| Qualcomm | Wcn3998 Firmware | All versions |
| Qualcomm | Wcn6850 Firmware | All versions |
| Qualcomm | Wcn6851 Firmware | All versions |
| Qualcomm | Wcn6855 Firmware | All versions |
| Qualcomm | Wcn6856 Firmware | All versions |
| Qualcomm | Wsa8810 Firmware | All versions |
| Qualcomm | Wsa8815 Firmware | All versions |
| Qualcomm | Wsa8830 Firmware | All versions |
| Qualcomm | Wsa8835 Firmware | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-30321?
Possible buffer overflow due to lack of parameter length check during MBSSID scan IE parse in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity
How severe is CVE-2021-30321?
CVE-2021-30321 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30321?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-30321?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
