How severe is CVE-2021-1947?

CVE-2021-1947 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-1947 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-2021-1947?

CVE-2021-1947 primarily affects Qualcomm Apq8009w Firmware. In total, 87 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-1947?

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-2021-1947 published?

CVE-2021-1947 was published on 2021-09-17 and last updated on 2026-06-17.

CVE-2021-1947

CVE-2021-1947 is a high-severity vulnerability in Qualcomm Apq8009w Firmware with a CVSS 3.x base score of 8.4. 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-416.

Key facts

Severity: High (CVSS 3.x base score 8.4)
CVSS v2: 7.2
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Qualcomm Apq8009w Firmware
Published: 2021-09-17
Last modified: 2026-06-17

Description

Use-after-free vulnerability in kernel graphics driver because of storing an invalid pointer in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Frequently asked questions

What is CVE-2021-1947?: Use-after-free vulnerability in kernel graphics driver because of storing an invalid pointer in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking
How severe is CVE-2021-1947?: CVE-2021-1947 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-1947 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-2021-1947?: CVE-2021-1947 primarily affects Qualcomm Apq8009w Firmware. In total, 87 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-1947?: 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-2021-1947 published?: CVE-2021-1947 was published on 2021-09-17 and last updated on 2026-06-17.

References

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

Affected products (87)

cpe:2.3:o:qualcomm:apq8009w_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:apq8053_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ar9380_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq8064_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq8065_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq8068_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq8069_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:msm8909w_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:msm8953_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6320_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6426_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca8337_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9531_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9558_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9561_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9563_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9880_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9882_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9886_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9887_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9888_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9889_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9896_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9898_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9980_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9982_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9984_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9990_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9992_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9994_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcm2290_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcm4290_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcm6125_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs2290_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs4290_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs6125_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qet4101_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qrb5165_firmware:-:*:*:*:*:*:*:*

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