How severe is CVE-2020-11209?

CVE-2020-11209 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-11209 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11209?

CVE-2020-11209 primarily affects Qualcomm Sd820 Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-11209?

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

When was CVE-2020-11209 published?

CVE-2020-11209 was published on 2020-11-12 and last updated on 2026-06-17.

CVE-2020-11209

CVE-2020-11209 is a medium-severity vulnerability in Qualcomm Sd820 Firmware with a CVSS 3.x base score of 5.5. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Qualcomm Sd820 Firmware
Published: 2020-11-12
Last modified: 2026-06-17

Description

Improper authorization in DSP process could allow unauthorized users to downgrade the library versions in SD820, SD821, SD820, QCS603, QCS605, SDA855, SA6155P, SA6145P, SA6155, SA6155P, SD855, SD 675, SD660, SD429, SD439

Frequently asked questions

What is CVE-2020-11209?: Improper authorization in DSP process could allow unauthorized users to downgrade the library versions in SD820, SD821, SD820, QCS603, QCS605, SDA855, SA6155P, SA6145P, SA6155, SA6155P, SD855, SD 675, SD660, SD429, SD439
How severe is CVE-2020-11209?: CVE-2020-11209 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-11209 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11209?: CVE-2020-11209 primarily affects Qualcomm Sd820 Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-11209?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-11209 published?: CVE-2020-11209 was published on 2020-11-12 and last updated on 2026-06-17.

References

Affected products (13)

cpe:2.3:o:qualcomm:sd820_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd821_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs603_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qcs605_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sda855_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa6155p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa6155_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd855_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_675_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd660_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd429_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd439_firmware:-:*:*:*:*:*:*:*

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