CVE-2021-30326
HIGHCVSS 7.5/10EPSS 0.56%
Last modified
CVE-2021-30326 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Possible assertion due to improper size validation while processing the DownlinkPreemption IE in an RRC Reconfiguration/RRC Setup message in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile. EPSS estimates a 0.56% chance of exploitation in the next 30 days.
Description
Possible assertion due to improper size validation while processing the DownlinkPreemption IE in an RRC Reconfiguration/RRC Setup message in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Qualcomm | Ar8035 Firmware | All versions |
| Qualcomm | Qca6390 Firmware | All versions |
| Qualcomm | Qca6391 Firmware | All versions |
| Qualcomm | Qca6426 Firmware | All versions |
| Qualcomm | Qca6436 Firmware | All versions |
| Qualcomm | Qca6574a Firmware | All versions |
| Qualcomm | Qca6574au Firmware | All versions |
| Qualcomm | Qca6595au Firmware | All versions |
| Qualcomm | Qca6696 Firmware | All versions |
| Qualcomm | Qca8081 Firmware | All versions |
| Qualcomm | Qca8337 Firmware | All versions |
| Qualcomm | Qcm6490 Firmware | All versions |
| Qualcomm | Qcs6490 Firmware | All versions |
| Qualcomm | Qcx315 Firmware | All versions |
| Qualcomm | Sa515m Firmware | All versions |
| Qualcomm | Sd 8 Gen1 5g Firmware | All versions |
| Qualcomm | Sd480 Firmware | All versions |
| Qualcomm | Sd690 5g Firmware | All versions |
| Qualcomm | Sd750g Firmware | All versions |
| Qualcomm | Sd765 Firmware | All versions |
| Qualcomm | Sd765g Firmware | All versions |
| Qualcomm | Sd768g Firmware | All versions |
| Qualcomm | Sd778g Firmware | All versions |
| Qualcomm | Sd865 5g Firmware | All versions |
| Qualcomm | Sd870 Firmware | All versions |
| Qualcomm | Sd888 Firmware | All versions |
| Qualcomm | Sd888 5g Firmware | All versions |
| Qualcomm | Sdx55 Firmware | All versions |
| Qualcomm | Sdx55m Firmware | All versions |
| Qualcomm | Sdx65 Firmware | All versions |
| Qualcomm | Sdxr2 5g Firmware | All versions |
| Qualcomm | Sm6375 Firmware | All versions |
| Qualcomm | Sm7250p Firmware | All versions |
| Qualcomm | Sm7315 Firmware | All versions |
| Qualcomm | Sm7325p Firmware | All versions |
| Qualcomm | Wcd9341 Firmware | All versions |
| Qualcomm | Wcd9360 Firmware | All versions |
| Qualcomm | Wcd9370 Firmware | All versions |
| Qualcomm | Wcd9375 Firmware | All versions |
| Qualcomm | Wcd9380 Firmware | All versions |
| Qualcomm | Wcd9385 Firmware | All versions |
| Qualcomm | Wcn3988 Firmware | All versions |
| Qualcomm | Wcn3991 Firmware | All versions |
| Qualcomm | Wcn3998 Firmware | All versions |
| Qualcomm | Wcn6750 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 |
Showing 50 of 53 affected configurations. See NVD for the full list.
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-30326?
Possible assertion due to improper size validation while processing the DownlinkPreemption IE in an RRC Reconfiguration/RRC Setup message in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile
How severe is CVE-2021-30326?
CVE-2021-30326 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30326?
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-2021-30326?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST