How severe is CVE-2021-1923?

CVE-2021-1923 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-1923 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-1923?

CVE-2021-1923 primarily affects Qualcomm Aqt1000 Firmware. In total, 84 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-1923?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-1923 published?

CVE-2021-1923 was published on 2021-09-08 and last updated on 2026-06-17.

CVE-2021-1923

CVE-2021-1923 is a high-severity vulnerability in Qualcomm Aqt1000 Firmware with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-704.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-704
Affected product: Qualcomm Aqt1000 Firmware
Published: 2021-09-08
Last modified: 2026-06-17

Description

Incorrect pointer argument passed to trusted application TA could result in un-intended memory operations in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT

Frequently asked questions

What is CVE-2021-1923?: Incorrect pointer argument passed to trusted application TA could result in un-intended memory operations in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT
How severe is CVE-2021-1923?: CVE-2021-1923 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-1923 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-1923?: CVE-2021-1923 primarily affects Qualcomm Aqt1000 Firmware. In total, 84 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-1923?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-1923 published?: CVE-2021-1923 was published on 2021-09-08 and last updated on 2026-06-17.

References

https://www.qualcomm.com/company/product-security/bulletins/august-2021-bulletin

Affected products (84)

cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6420_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6421_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6426_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6430_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6431_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6436_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6574_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6574a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6595_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6595au_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcm2290_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcm4290_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs2290_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs4290_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qsm8350_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa6150p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa6155_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa6155p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa8145p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa8150p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa8155_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa8155p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa8195p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_675_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_8c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_8cx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd460_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd480_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd662_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd665_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd670_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd675_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd678_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd690_5g_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm Aqt1000 Firmware

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