Cyber Resilience

CVE-2021-30321

Critical

Published: 12 November 2021

Published
12 November 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0027 50.9th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-30321 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in Qualcomm Aqt1000 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 49.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Possible buffer overflow due to lack of parameter length check during MBSSID scan IE parse in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

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
+13 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References