How severe is CVE-2023-21657?

CVE-2023-21657 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-2023-21657 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21657?

CVE-2023-21657 primarily affects Qualcomm Csra6620 Firmware. In total, 126 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-21657?

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-2023-21657 published?

CVE-2023-21657 was published on 2023-06-06 and last updated on 2026-06-17.

CVE-2023-21657

CVE-2023-21657 is a high-severity vulnerability in Qualcomm Csra6620 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Qualcomm Csra6620 Firmware
Published: 2023-06-06
Last modified: 2026-06-17

Description

Memoru corruption in Audio when ADSP sends input during record use case.

Frequently asked questions

What is CVE-2023-21657?: Memoru corruption in Audio when ADSP sends input during record use case.
How severe is CVE-2023-21657?: CVE-2023-21657 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-2023-21657 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21657?: CVE-2023-21657 primarily affects Qualcomm Csra6620 Firmware. In total, 126 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-21657?: 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-2023-21657 published?: CVE-2023-21657 was published on 2023-06-06 and last updated on 2026-06-17.

References

https://www.qualcomm.com/company/product-security/bulletins/june-2023-bulletin

Affected products (126)

cpe:2.3:o:qualcomm:csra6620_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:csra6640_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3991_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3998_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn6750_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn685x-5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn685x-1_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn785x-1_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn785x-5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:flight_rb5_5g_platform_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9650_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8255p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8295p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8650p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qam8775p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6174a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6310_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6320_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6426_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:qca6698aq_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6797aq_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9377_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcm2290_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcm4290_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcm4325_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcm6490_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcn9011_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcn9012_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs2290_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs410_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs4290_firmware:-:*:*:*:*:*:*:*

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