CVE-2020-11209

Name: CVE-2020-11209
Creator: NVD / NIST
Published: 2020-11-12T10:15:13.25+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.57%

Last modified Jun 17, 2026

CVE-2020-11209 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 1.57% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

1.57%

72.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Qualcomm	Sd820 Firmware	All versions
Qualcomm	Sd821 Firmware	All versions
Qualcomm	Qcs603 Firmware	All versions
Qualcomm	Qcs605 Firmware	All versions
Qualcomm	Sda855 Firmware	All versions
Qualcomm	Sa6155p Firmware	All versions
Qualcomm	Sa6145p Firmware	All versions
Qualcomm	Sa6155 Firmware	All versions
Qualcomm	Sd855 Firmware	All versions
Qualcomm	Sd 675 Firmware	All versions
Qualcomm	Sd660 Firmware	All versions
Qualcomm	Sd429 Firmware	All versions
Qualcomm	Sd439 Firmware	All versions

References

https://blog.checkpoint.com/2020/08/06/achilles-small-chip-big-peril/Third Party Advisory
https://research.checkpoint.com/2021/pwn2own-qualcomm-dsp/Exploit, Third Party Advisory
https://www.qualcomm.com/company/product-security/bulletins/november-2020-bulletinBroken Link, Vendor Advisory
https://blog.checkpoint.com/2020/08/06/achilles-small-chip-big-peril/Third Party Advisory
https://research.checkpoint.com/2021/pwn2own-qualcomm-dsp/Exploit, Third Party Advisory
https://www.qualcomm.com/company/product-security/bulletins/november-2020-bulletinBroken Link, Vendor Advisory

Timeline

Published: Nov 12, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-11209?

How severe is CVE-2020-11209?

CVE-2020-11209 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.57% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11209?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-11209?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST