CVE-2021-1957

CVE-2021-1957 is a medium-severity vulnerability in Qualcomm Apq8017 Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

• Severity: Medium (CVSS 3.x base score 6.5)
• CVSS v2: 3.3
• EPSS exploit prediction: 0% (5th percentile)
• Actively exploited: Not listed in CISA KEV
• Affected product: Qualcomm Apq8017 Firmware
• Published: 2021-09-09
• Last modified: 2026-06-17

Description

Improper Access Control when ACL link encryption is failed and ACL link is not disconnected during reconnection with paired device in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

Frequently asked questions

What is CVE-2021-1957?

Improper Access Control when ACL link encryption is failed and ACL link is not disconnected during reconnection with paired device in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music

How severe is CVE-2021-1957?

CVE-2021-1957 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-1957 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-2021-1957?

CVE-2021-1957 primarily affects Qualcomm Apq8017 Firmware. In total, 46 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-1957?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-1957 published?

CVE-2021-1957 was published on 2021-09-09 and last updated on 2026-06-17.

References

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

Affected products (46)

• cpe:2.3:o:qualcomm:apq8017_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6174a_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6390_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6391_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6421_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6426_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6431_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6436_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qcm6125_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qcs610_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qcs6125_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qrb5165_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qualcomm215_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa6150p_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:sa8155p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sa8195p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sd855_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sd865_5g_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sd870_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sdx55_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sdx55m_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:sdxr2_5g_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcd9326_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcd9335_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcd9341_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcd9370_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcd9385_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcn3610_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcn3615_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcn3660b_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcn3680_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcn3950_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:wcn3980_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm Apq8017 Firmware

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• CVE-2023-22388 — Critical (CVSS 9.8): Memory Corruption in Multi-mode Call Processor while processing bit mask API.
• CVE-2022-40510 — Critical (CVSS 9.8): Memory corruption due to buffer copy without checking size of input in Audio while voice call with EVS vocoder.
• CVE-2022-25748 — Critical (CVSS 9.8): Memory corruption in WLAN due to integer overflow to buffer overflow while parsing GTK frames. in Snapdragon Auto,…
• CVE-2022-25720 — Critical (CVSS 9.8): Memory corruption in WLAN due to out of bound array access during connect/roaming in Snapdragon Auto, Snapdragon…
• CVE-2022-25651 — Critical (CVSS 9.8): Memory corruption in bluetooth host due to integer overflow while processing BT HFP-UNIT profile in Snapdragon Auto,…

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