Is CVE-2021-1920 actively exploited?

CVE-2021-1920 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-1920?

CVE-2021-1920 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2021-1920?

Patch guidance is available from qualcomm security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-1920.

Fix CVE-2021-1920 - CRITICAL qualcomm apq8009 firmware

Q: Which products are affected by CVE-2021-1920?

172 products: qualcomm apq8009 firmware, qualcomm apq8009w firmware, qualcomm apq8017 firmware, qualcomm apq8037 firmware, qualcomm apq8053 firmware, and 167 more.

Description

Integer underflow can occur due to improper handling of incoming RTCP packets in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Voice & Music, Snapdragon Wearables

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-191

Metadata

Primary Vendor: QUALCOMM
Published: 9/8/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

qualcomm : apq8009_firmwarequalcomm : apq8009w_firmwarequalcomm : apq8017_firmwarequalcomm : apq8037_firmwarequalcomm : apq8053_firmwarequalcomm : apq8084_firmwarequalcomm : apq8096au_firmwarequalcomm : aqt1000_firmwarequalcomm : ar6003_firmwarequalcomm : csr6030_firmwarequalcomm : csrb31024_firmwarequalcomm : mdm8207_firmwarequalcomm : mdm8215_firmwarequalcomm : mdm8215m_firmwarequalcomm : mdm8615m_firmwarequalcomm : mdm9150_firmwarequalcomm : mdm9205_firmwarequalcomm : mdm9206_firmwarequalcomm : mdm9207_firmwarequalcomm : mdm9215_firmwarequalcomm : mdm9230_firmwarequalcomm : mdm9250_firmwarequalcomm : mdm9310_firmwarequalcomm : mdm9330_firmwarequalcomm : mdm9607_firmwarequalcomm : mdm9615_firmwarequalcomm : mdm9615m_firmwarequalcomm : mdm9625_firmwarequalcomm : mdm9628_firmwarequalcomm : mdm9630_firmwarequalcomm : mdm9635m_firmwarequalcomm : mdm9640_firmwarequalcomm : mdm9645_firmwarequalcomm : mdm9650_firmwarequalcomm : mdm9655_firmwarequalcomm : msm8108_firmwarequalcomm : msm8208_firmwarequalcomm : msm8209_firmwarequalcomm : msm8608_firmwarequalcomm : msm8909w_firmwarequalcomm : msm8917_firmwarequalcomm : msm8920_firmwarequalcomm : msm8937_firmwarequalcomm : msm8940_firmwarequalcomm : msm8953_firmwarequalcomm : msm8976_firmwarequalcomm : msm8976sg_firmwarequalcomm : msm8996au_firmwarequalcomm : qca1990_firmwarequalcomm : qca4004_firmwarequalcomm : qca6174_firmwarequalcomm : qca6174a_firmwarequalcomm : qca6310_firmwarequalcomm : qca6320_firmwarequalcomm : qca6335_firmwarequalcomm : qca6390_firmwarequalcomm : qca6391_firmwarequalcomm : qca6420_firmwarequalcomm : qca6421_firmwarequalcomm : qca6426_firmwarequalcomm : qca6430_firmwarequalcomm : qca6431_firmwarequalcomm : qca6436_firmwarequalcomm : qca6564a_firmwarequalcomm : qca6564au_firmwarequalcomm : qca6574_firmwarequalcomm : qca6574a_firmwarequalcomm : qca6574au_firmwarequalcomm : qca6584_firmwarequalcomm : qca6584au_firmwarequalcomm : qca6595au_firmwarequalcomm : qca6694_firmwarequalcomm : qca6694au_firmwarequalcomm : qca6696_firmwarequalcomm : qca9367_firmwarequalcomm : qca9377_firmwarequalcomm : qca9379_firmwarequalcomm : qcm4290_firmwarequalcomm : qcm6125_firmwarequalcomm : qcs410_firmwarequalcomm : qcs4290_firmwarequalcomm : qcs603_firmwarequalcomm : qcs605_firmwarequalcomm : qcs610_firmwarequalcomm : qcs6125_firmwarequalcomm : qcx315_firmwarequalcomm : qsw8573_firmwarequalcomm : qualcomm215_firmwarequalcomm : sa415m_firmwarequalcomm : sa515m_firmwarequalcomm : sa8155_firmwarequalcomm : sa8155p_firmwarequalcomm : sc8180x_firmwarequalcomm : sdx55_firmwarequalcomm : sd_455_firmwarequalcomm : sd_636_firmwarequalcomm : sd_675_firmwarequalcomm : sd_8c_firmwarequalcomm : sd_8cx_firmwarequalcomm : sd205_firmwarequalcomm : sd210_firmwarequalcomm : sd429_firmwarequalcomm : sd439_firmwarequalcomm : sd450_firmwarequalcomm : sd480_firmwarequalcomm : sd632_firmwarequalcomm : sd665_firmwarequalcomm : sd670_firmwarequalcomm : sd675_firmwarequalcomm : sd678_firmwarequalcomm : sd690_5g_firmwarequalcomm : sd712_firmwarequalcomm : sd720g_firmwarequalcomm : sd730_firmwarequalcomm : sd750g_firmwarequalcomm : sd765_firmwarequalcomm : sd765g_firmwarequalcomm : sd768g_firmwarequalcomm : sd778g_firmwarequalcomm : sd820_firmwarequalcomm : sd821_firmwarequalcomm : sd835_firmwarequalcomm : sd845_firmwarequalcomm : sd850_firmwarequalcomm : sd855_firmwarequalcomm : sd865_5g_firmwarequalcomm : sd870_firmwarequalcomm : sd888_5g_firmwarequalcomm : sdm630_firmwarequalcomm : sdw2500_firmwarequalcomm : sdx12_firmwarequalcomm : sdx20_firmwarequalcomm : sdx24_firmwarequalcomm : sdx50m_firmwarequalcomm : sdx55_firmwarequalcomm : sdx55m_firmwarequalcomm : sdxr1_firmwarequalcomm : sdxr2_5g_firmwarequalcomm : sm6250_firmwarequalcomm : sm6250p_firmwarequalcomm : sm7250_firmwarequalcomm : wcd9306_firmwarequalcomm : wcd9330_firmwarequalcomm : wcd9340_firmwarequalcomm : wcd9360_firmwarequalcomm : wcd9370_firmwarequalcomm : wcd9371_firmwarequalcomm : wcd9375_firmwarequalcomm : wcd9380_firmwarequalcomm : wcd9385_firmwarequalcomm : wcn3610_firmwarequalcomm : wcn3615_firmwarequalcomm : wcn3620_firmwarequalcomm : wcn3660_firmwarequalcomm : wcn3660b_firmwarequalcomm : wcn3680_firmwarequalcomm : wcn3680b_firmwarequalcomm : wcn3910_firmwarequalcomm : wcn3950_firmwarequalcomm : wcn3988_firmwarequalcomm : wcn3991_firmwarequalcomm : wcn3998_firmwarequalcomm : wcn6750_firmwarequalcomm : wcn6850_firmwarequalcomm : wcn6851_firmwarequalcomm : wcn6855_firmwarequalcomm : wcn6856_firmwarequalcomm : whs9410_firmwarequalcomm : wsa8810_firmwarequalcomm : wsa8815_firmwarequalcomm : wsa8830_firmwarequalcomm : wsa8835_firmware

Remediation Guidance

Executive Summary

Cite this page

CVE-2021-1920. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2021-1920

View on NIST NVD

CVE-2021-1920 vulnerability