How severe is CVE-2020-3685?

CVE-2020-3685 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-3685 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-3685?

CVE-2020-3685 primarily affects Qualcomm Apq8009. In total, 506 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-3685?

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-2020-3685 published?

CVE-2020-3685 was published on 2021-01-21 and last updated on 2026-06-17.

CVE-2020-3685

CVE-2020-3685 is a high-severity vulnerability in Qualcomm Apq8009 with a CVSS 3.x base score of 7.5. 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-415.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-415
Affected product: Qualcomm Apq8009
Published: 2021-01-21
Last modified: 2026-06-17

Description

Pointer variable which is freed is not cleared can result in memory corruption and leads to denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Frequently asked questions

What is CVE-2020-3685?: Pointer variable which is freed is not cleared can result in memory corruption and leads to denial of service in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking
How severe is CVE-2020-3685?: CVE-2020-3685 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-3685 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-3685?: CVE-2020-3685 primarily affects Qualcomm Apq8009. In total, 506 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-3685?: 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-2020-3685 published?: CVE-2020-3685 was published on 2021-01-21 and last updated on 2026-06-17.

References

Affected products (506)

cpe:2.3:h:qualcomm:apq8009:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8009w:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8017:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8030:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8037:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8052:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8053:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8056:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8060a:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8062:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8064:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8064au:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8076:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8084:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:apq8096au:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:aqt1000:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:ar6003:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:ar8031:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:ar8035:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:ar8151:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:ar9374:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:csra6620:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:csra6640:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:csrb31024:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm8215:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm8215m:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm8615m:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm8635m:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9206:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9215:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9225:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9225m:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9230:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9235m:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9310:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9330:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9607:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9615:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9615m:-:*:*:*:*:*:*:*
cpe:2.3:h:qualcomm:mdm9625:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm Apq8009

CVE-2020-11283 — Critical (CVSS 9.8): A buffer overflow can occur when playing an MKV clip due to lack of input validation in Snapdragon Auto, Snapdragon…
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CVE-2020-11216 — Critical (CVSS 9.8): Buffer over read can happen in video driver when playing clip with atomsize having value UINT32_MAX in Snapdragon Auto,…
CVE-2020-11213 — Critical (CVSS 9.8): Out of bound reads might occur in while processing Service descriptor due to improper validation of length of fields in…
CVE-2020-11212 — Critical (CVSS 9.8): Out of bounds reads while parsing NAN beacons attributes and OUIs due to improper length of field check in Snapdragon…

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CVE-2026-31609 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid double-free in…
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