Is CVE-2021-1905 actively exploited?

CVE-2021-1905 has no public evidence of in-the-wild exploitation as of 2025-10-28.

What is the CVSS score for CVE-2021-1905?

CVE-2021-1905 has a CVSS score of 8.4 (HIGH severity). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2021-1905?

Patch guidance is available from qualcomm security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-1905.

Fix CVE-2021-1905 - HIGH qualcomm apq8009 firmware

Q: Which products are affected by CVE-2021-1905?

397 products: qualcomm apq8009 firmware, qualcomm apq8009w firmware, qualcomm apq8017 firmware, qualcomm apq8053 firmware, qualcomm apq8064au firmware, and 392 more.

Description

Possible use after free due to improper handling of memory mapping of multiple processes simultaneously. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: local
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-416 · Use After Free CWE-416 · Use After Free

Metadata

Primary Vendor: QUALCOMM
Published: 5/7/2021
Last Modified: 10/28/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

qualcomm : apq8009_firmwarequalcomm : apq8009w_firmwarequalcomm : apq8017_firmwarequalcomm : apq8053_firmwarequalcomm : apq8064au_firmwarequalcomm : apq8096au_firmwarequalcomm : aqt1000_firmwarequalcomm : ar8031_firmwarequalcomm : ar8035_firmwarequalcomm : ar8151_firmwarequalcomm : csra6620_firmwarequalcomm : csra6640_firmwarequalcomm : fsm10055_firmwarequalcomm : fsm10056_firmwarequalcomm : mdm9206_firmwarequalcomm : mdm9607_firmwarequalcomm : mdm9626_firmwarequalcomm : mdm9628_firmwarequalcomm : mdm9650_firmwarequalcomm : msm8909w_firmwarequalcomm : msm8917_firmwarequalcomm : msm8953_firmwarequalcomm : msm8996au_firmwarequalcomm : pm215_firmwarequalcomm : pm3003a_firmwarequalcomm : pm4125_firmwarequalcomm : pm4250_firmwarequalcomm : pm439_firmwarequalcomm : pm456_firmwarequalcomm : pm6125_firmwarequalcomm : pm6150_firmwarequalcomm : pm6150a_firmwarequalcomm : pm6150l_firmwarequalcomm : pm6250_firmwarequalcomm : pm6350_firmwarequalcomm : pm640a_firmwarequalcomm : pm640l_firmwarequalcomm : pm640p_firmwarequalcomm : pm660_firmwarequalcomm : pm660a_firmwarequalcomm : pm660l_firmwarequalcomm : pm670_firmwarequalcomm : pm670a_firmwarequalcomm : pm670l_firmwarequalcomm : pm7150a_firmwarequalcomm : pm7150l_firmwarequalcomm : pm7250_firmwarequalcomm : pm7250b_firmwarequalcomm : pm8004_firmwarequalcomm : pm8005_firmwarequalcomm : pm8008_firmwarequalcomm : pm8009_firmwarequalcomm : pm8150_firmwarequalcomm : pm8150a_firmwarequalcomm : pm8150b_firmwarequalcomm : pm8150c_firmwarequalcomm : pm8150l_firmwarequalcomm : pm8250_firmwarequalcomm : pm8350_firmwarequalcomm : pm8350b_firmwarequalcomm : pm8350bh_firmwarequalcomm : pm8350c_firmwarequalcomm : pm855_firmwarequalcomm : pm855a_firmwarequalcomm : pm855b_firmwarequalcomm : pm855l_firmwarequalcomm : pm855p_firmwarequalcomm : pm8909_firmwarequalcomm : pm8916_firmwarequalcomm : pm8937_firmwarequalcomm : pm8953_firmwarequalcomm : pm8998_firmwarequalcomm : pmc1000h_firmwarequalcomm : pmd9607_firmwarequalcomm : pmd9655_firmwarequalcomm : pme605_firmwarequalcomm : pmi632_firmwarequalcomm : pmi8937_firmwarequalcomm : pmi8952_firmwarequalcomm : pmi8998_firmwarequalcomm : pmk8002_firmwarequalcomm : pmk8003_firmwarequalcomm : pmk8350_firmwarequalcomm : pmm6155au_firmwarequalcomm : pmm8155au_firmwarequalcomm : pmm8195au_firmwarequalcomm : pmm855au_firmwarequalcomm : pmm8920au_firmwarequalcomm : pmm8996au_firmwarequalcomm : pmr525_firmwarequalcomm : pmr735a_firmwarequalcomm : pmr735b_firmwarequalcomm : pmw3100_firmwarequalcomm : pmx20_firmwarequalcomm : pmx24_firmwarequalcomm : pmx50_firmwarequalcomm : pmx55_firmwarequalcomm : qat3514_firmwarequalcomm : qat3516_firmwarequalcomm : qat3518_firmwarequalcomm : qat3519_firmwarequalcomm : qat3522_firmwarequalcomm : qat3550_firmwarequalcomm : qat3555_firmwarequalcomm : qat5515_firmwarequalcomm : qat5516_firmwarequalcomm : qat5522_firmwarequalcomm : qat5533_firmwarequalcomm : qat5568_firmwarequalcomm : qbt1000_firmwarequalcomm : qbt1500_firmwarequalcomm : qbt2000_firmwarequalcomm : qca4020_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 : qca6564_firmwarequalcomm : qca6564a_firmwarequalcomm : qca6564au_firmwarequalcomm : qca6574_firmwarequalcomm : qca6574a_firmwarequalcomm : qca6574au_firmwarequalcomm : qca6584au_firmwarequalcomm : qca6595au_firmwarequalcomm : qca6696_firmwarequalcomm : qca8337_firmwarequalcomm : qca9367_firmwarequalcomm : qca9377_firmwarequalcomm : qca9379_firmwarequalcomm : qcc1110_firmwarequalcomm : qcm2290_firmwarequalcomm : qcm4290_firmwarequalcomm : qcm6125_firmwarequalcomm : qcs2290_firmwarequalcomm : qcs405_firmwarequalcomm : qcs410_firmwarequalcomm : qcs4290_firmwarequalcomm : qcs603_firmwarequalcomm : qcs605_firmwarequalcomm : qcs610_firmwarequalcomm : qcs6125_firmwarequalcomm : qdm2301_firmwarequalcomm : qdm2302_firmwarequalcomm : qdm2305_firmwarequalcomm : qdm2307_firmwarequalcomm : qdm2308_firmwarequalcomm : qdm2310_firmwarequalcomm : qdm3301_firmwarequalcomm : qdm4643_firmwarequalcomm : qdm4650_firmwarequalcomm : qdm5620_firmwarequalcomm : qdm5621_firmwarequalcomm : qdm5650_firmwarequalcomm : qdm5652_firmwarequalcomm : qdm5670_firmwarequalcomm : qdm5671_firmwarequalcomm : qdm5677_firmwarequalcomm : qdm5679_firmwarequalcomm : qet4100_firmwarequalcomm : qet4101_firmwarequalcomm : qet5100_firmwarequalcomm : qet5100m_firmwarequalcomm : qet6100_firmwarequalcomm : qet6105_firmwarequalcomm : qet6110_firmwarequalcomm : qfe2101_firmwarequalcomm : qfe2520_firmwarequalcomm : qfe2550_firmwarequalcomm : qfe3100_firmwarequalcomm : qfe3340_firmwarequalcomm : qfe4301_firmwarequalcomm : qfe4302_firmwarequalcomm : qfe4303_firmwarequalcomm : qfe4305_firmwarequalcomm : qfe4308_firmwarequalcomm : qfe4309_firmwarequalcomm : qfe4320_firmwarequalcomm : qfe4373fc_firmwarequalcomm : qfs2530_firmwarequalcomm : qfs2580_firmwarequalcomm : qfs2608_firmwarequalcomm : qfs2630_firmwarequalcomm : qln1020_firmwarequalcomm : qln1030_firmwarequalcomm : qln4640_firmwarequalcomm : qln4642_firmwarequalcomm : qln4650_firmwarequalcomm : qln5020_firmwarequalcomm : qln5030_firmwarequalcomm : qln5040_firmwarequalcomm : qpa2625_firmwarequalcomm : qpa4340_firmwarequalcomm : qpa4360_firmwarequalcomm : qpa4361_firmwarequalcomm : qpa5373_firmwarequalcomm : qpa5460_firmwarequalcomm : qpa5461_firmwarequalcomm : qpa5580_firmwarequalcomm : qpa5581_firmwarequalcomm : qpa6560_firmwarequalcomm : qpa8673_firmwarequalcomm : qpa8675_firmwarequalcomm : qpa8686_firmwarequalcomm : qpa8801_firmwarequalcomm : qpa8802_firmwarequalcomm : qpa8803_firmwarequalcomm : qpa8821_firmwarequalcomm : qpa8842_firmwarequalcomm : qpm2630_firmwarequalcomm : qpm4621_firmwarequalcomm : qpm4630_firmwarequalcomm : qpm4640_firmwarequalcomm : qpm4641_firmwarequalcomm : qpm4650_firmwarequalcomm : qpm5541_firmwarequalcomm : qpm5577_firmwarequalcomm : qpm5579_firmwarequalcomm : qpm5620_firmwarequalcomm : qpm5621_firmwarequalcomm : qpm5641_firmwarequalcomm : qpm5657_firmwarequalcomm : qpm5658_firmwarequalcomm : qpm5670_firmwarequalcomm : qpm5677_firmwarequalcomm : qpm5679_firmwarequalcomm : qpm5870_firmwarequalcomm : qpm5875_firmwarequalcomm : qpm6325_firmwarequalcomm : qpm6375_firmwarequalcomm : qpm6582_firmwarequalcomm : qpm6585_firmwarequalcomm : qpm6621_firmwarequalcomm : qpm6670_firmwarequalcomm : qpm8820_firmwarequalcomm : qpm8830_firmwarequalcomm : qpm8870_firmwarequalcomm : qpm8895_firmwarequalcomm : qsm7250_firmwarequalcomm : qsm8250_firmwarequalcomm : qsw6310_firmwarequalcomm : qsw8573_firmwarequalcomm : qsw8574_firmwarequalcomm : qtc410s_firmwarequalcomm : qtc800h_firmwarequalcomm : qtc800s_firmwarequalcomm : qtc800t_firmwarequalcomm : qtc801s_firmwarequalcomm : qtm525_firmwarequalcomm : qtm527_firmwarequalcomm : qualcomm215_firmwarequalcomm : rgr7640au_firmwarequalcomm : rsw8577_firmwarequalcomm : sa2150p_firmwarequalcomm : sa515m_firmwarequalcomm : sa6145p_firmwarequalcomm : sa6150p_firmwarequalcomm : sa6155_firmwarequalcomm : sa6155p_firmwarequalcomm : sa8150p_firmwarequalcomm : sa8155_firmwarequalcomm : sa8155p_firmwarequalcomm : sa8195p_firmwarequalcomm : sd455_firmwarequalcomm : sd636_firmwarequalcomm : sd675_firmwarequalcomm : sd8c_firmwarequalcomm : sd8cx_firmwarequalcomm : sd205_firmwarequalcomm : sd210_firmwarequalcomm : sd429_firmwarequalcomm : sd439_firmwarequalcomm : sd450_firmwarequalcomm : sd460_firmwarequalcomm : sd480_firmwarequalcomm : sd632_firmwarequalcomm : sd660_firmwarequalcomm : sd662_firmwarequalcomm : sd665_firmwarequalcomm : sd670_firmwarequalcomm : sd675_firmwarequalcomm : sd678_firmwarequalcomm : sd6905g_firmwarequalcomm : sd710_firmwarequalcomm : sd720g_firmwarequalcomm : sd730_firmwarequalcomm : sd750g_firmwarequalcomm : sd765_firmwarequalcomm : sd765g_firmwarequalcomm : sd768g_firmwarequalcomm : sd835_firmwarequalcomm : sd845_firmwarequalcomm : sd855_firmwarequalcomm : sd8655g_firmwarequalcomm : sd870_firmwarequalcomm : sd888_firmwarequalcomm : sd8885g_firmwarequalcomm : sda429w_firmwarequalcomm : sdm429w_firmwarequalcomm : sdm630_firmwarequalcomm : sdm830_firmwarequalcomm : sdr051_firmwarequalcomm : sdr052_firmwarequalcomm : sdr425_firmwarequalcomm : sdr660_firmwarequalcomm : sdr660g_firmwarequalcomm : sdr675_firmwarequalcomm : sdr735_firmwarequalcomm : sdr735g_firmwarequalcomm : sdr8150_firmwarequalcomm : sdr8250_firmwarequalcomm : sdr845_firmwarequalcomm : sdr865_firmwarequalcomm : sdw2500_firmwarequalcomm : sdw3100_firmwarequalcomm : sdx20_firmwarequalcomm : sdx20m_firmwarequalcomm : sdx24_firmwarequalcomm : sdx50m_firmwarequalcomm : sdx55_firmwarequalcomm : sdx55m_firmwarequalcomm : sdxr1_firmwarequalcomm : sdxr2_5g_firmwarequalcomm : sm4125_firmwarequalcomm : sm6250_firmwarequalcomm : sm6250p_firmwarequalcomm : sm7250p_firmwarequalcomm : smb1350_firmwarequalcomm : smb1351_firmwarequalcomm : smb1354_firmwarequalcomm : smb1355_firmwarequalcomm : smb1357_firmwarequalcomm : smb1358_firmwarequalcomm : smb1360_firmwarequalcomm : smb1380_firmwarequalcomm : smb1381_firmwarequalcomm : smb1390_firmwarequalcomm : smb1395_firmwarequalcomm : smb1396_firmwarequalcomm : smb1398_firmwarequalcomm : smb231_firmwarequalcomm : smb2351_firmwarequalcomm : smb358s_firmwarequalcomm : smr525_firmwarequalcomm : smr526_firmwarequalcomm : smr545_firmwarequalcomm : smr546_firmwarequalcomm : wcd9326_firmwarequalcomm : wcd9330_firmwarequalcomm : wcd9335_firmwarequalcomm : wcd9340_firmwarequalcomm : wcd9341_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 : wcn3980_firmwarequalcomm : wcn3988_firmwarequalcomm : wcn3990_firmwarequalcomm : wcn3991_firmwarequalcomm : wcn3998_firmwarequalcomm : wcn3999_firmwarequalcomm : wcn6850_firmwarequalcomm : wcn6851_firmwarequalcomm : wcn6855_firmwarequalcomm : wcn6856_firmwarequalcomm : wgr7640_firmwarequalcomm : wsa8810_firmwarequalcomm : wsa8815_firmwarequalcomm : wsa8830_firmwarequalcomm : wsa8835_firmwarequalcomm : wtr2955_firmwarequalcomm : wtr2965_firmwarequalcomm : wtr3925_firmwarequalcomm : wtr4905_firmwarequalcomm : wtr5975_firmwarequalcomm : wtr6955_firmware

Remediation Guidance

Executive Summary

View on NIST NVD