CVE-2021-1947

Published: Sep 17, 2021Modified: Jun 17, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

Use-after-free vulnerability in kernel graphics driver because of storing an invalid pointer in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Affected (87)

Products: Qualcomm: Apq8009w Firmware, Apq8053 Firmware, Ar9380 Firmware, Ipq8064 Firmware, Ipq8065 Firmware, Ipq8068 Firmware, Ipq8069 Firmware, Msm8909w Firmware, Msm8953 Firmware, Qca6320 Firmware, Qca6390 Firmware, Qca6391 Firmware, Qca6426 Firmware, Qca8337 Firmware, Qca9531 Firmware, Qca9558 Firmware, Qca9561 Firmware, Qca9563 Firmware, Qca9880 Firmware, Qca9882 Firmware, Qca9886 Firmware, Qca9887 Firmware, Qca9888 Firmware, Qca9889 Firmware, Qca9896 Firmware, Qca9898 Firmware, Qca9980 Firmware, Qca9982 Firmware, Qca9984 Firmware, Qca9990 Firmware, Qca9992 Firmware, Qca9994 Firmware, Qcm2290 Firmware, Qcm4290 Firmware, Qcm6125 Firmware, Qcs2290 Firmware, Qcs4290 Firmware, Qcs6125 Firmware, Qet4101 Firmware, Qrb5165 Firmware, Qsw8573 Firmware, Sd429 Firmware, Sd460 Firmware, Sd660 Firmware, Sd662 Firmware, Sd665 Firmware, Sd690 5g Firmware, Sd750g Firmware, Sd765 Firmware, Sd765g Firmware, Sd768g Firmware, Sd855 Firmware, Sd865 5g Firmware, Sd870 Firmware, Sda429w Firmware, Sdm429w Firmware, Sdm830 Firmware, Sdx55 Firmware, Sdx55m Firmware, Sm4125 Firmware, Sm7250 Firmware, Wcd9326 Firmware, Wcd9335 Firmware, Wcd9340 Firmware, Wcd9341 Firmware, Wcd9370 Firmware, Wcd9375 Firmware, Wcd9380 Firmware, Wcd9385 Firmware, Wcn3610 Firmware, Wcn3615 Firmware, Wcn3620 Firmware, Wcn3660b Firmware, Wcn3680b Firmware, Wcn3910 Firmware, Wcn3950 Firmware, Wcn3980 Firmware, Wcn3988 Firmware, Wcn3990 Firmware, Wcn3991 Firmware, Wcn3998 Firmware, Wcn6850 Firmware, Wcn6851 Firmware, Wsa8810 Firmware, Wsa8815 Firmware, Wsa8830 Firmware, Wsa8835 Firmware

87 products

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Apq8009w Firmware	All versions

Running on/with	Platform Versions
Qualcomm Apq8009w	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Apq8053 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Apq8053	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Ar9380 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Ar9380	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Ipq8064 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Ipq8064	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Ipq8065 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Ipq8065	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Ipq8068 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Ipq8068	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Ipq8069 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Ipq8069	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Msm8909w Firmware	All versions

Running on/with	Platform Versions
Qualcomm Msm8909w	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Msm8953 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Msm8953	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca6320 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca6320	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca6390 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca6390	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca6391 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca6391	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca6426 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca6426	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca8337 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca8337	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9531 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9531	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9558 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9558	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9561 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9561	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9563 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9563	All versions

Configuration S

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9880 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9880	All versions

Configuration T

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9882 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9882	All versions

Configuration U

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9886 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9886	All versions

Configuration V

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9887 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9887	All versions

Configuration W

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9888 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9888	All versions

Configuration X

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9889 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9889	All versions

Configuration Y

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9896 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9896	All versions

Configuration Z

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9898 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9898	All versions

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9980 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9980	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9982 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9982	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9984 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9984	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9990 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9990	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9992 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9992	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qca9994 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qca9994	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qcm2290 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qcm2290	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qcm4290 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qcm4290	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qcm6125 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qcm6125	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qcs2290 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qcs2290	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qcs4290 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qcs4290	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qcs6125 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qcs6125	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qet4101 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qet4101	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qrb5165 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qrb5165	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Qsw8573 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Qsw8573	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd429 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd429	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd460 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd460	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd660 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd660	All versions

Configuration S

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd662 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd662	All versions

Configuration T

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd665 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd665	All versions

Configuration U

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd690 5g Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd690 5g	All versions

Configuration V

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd750g Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd750g	All versions

Configuration W

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd765 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd765	All versions

Configuration X

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd765g Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd765g	All versions

Configuration Y

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd768g Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd768g	All versions

Configuration Z

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd855 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd855	All versions

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd865 5g Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd865 5g	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sd870 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sd870	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sda429w Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sda429w	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sdm429w Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sdm429w	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sdm830 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sdm830	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sdx55 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sdx55	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sdx55m Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sdx55m	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sm4125 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sm4125	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Sm7250 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Sm7250	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcd9326 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcd9326	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcd9335 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcd9335	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcd9340 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcd9340	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcd9341 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcd9341	All versions

Configuration N

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcd9370 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcd9370	All versions

Configuration O

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcd9375 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcd9375	All versions

Configuration P

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcd9380 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcd9380	All versions

Configuration Q

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcd9385 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcd9385	All versions

Configuration R

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3610 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3610	All versions

Configuration S

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3615 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3615	All versions

Configuration T

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3620 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3620	All versions

Configuration U

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3660b Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3660b	All versions

Configuration V

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3680b Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3680b	All versions

Configuration W

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3910 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3910	All versions

Configuration X

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3950 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3950	All versions

Configuration Y

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3980 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3980	All versions

Configuration Z

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3988 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3988	All versions

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3990 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3990	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3991 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3991	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn3998 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn3998	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn6850 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn6850	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wcn6851 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wcn6851	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wsa8810 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wsa8810	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wsa8815 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wsa8815	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wsa8830 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wsa8830	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Qualcomm Wsa8835 Firmware	All versions

Running on/with	Platform Versions
Qualcomm Wsa8835	All versions

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://www.qualcomm.com/company/product-security/bulletins/august-2021-bulletin

Source: product-security@qualcomm.com

PatchVendor Advisory

https://www.qualcomm.com/company/product-security/bulletins/august-2021-bulletin

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.