📦 Sd821 Firmware

by Qualcomm

🔍 What is Sd821 Firmware?

Description coming soon...

🛡️ Security Overview

Click on a severity to filter vulnerabilities

⚠️ Known Vulnerabilities

CVE-2021-1924

CRITICAL CVSS 9.0 Nov 12, 2021

This vulnerability allows attackers to extract RSA private keys through timing and power side-channel attacks during modular exponentiation in RSA-CRT implementations. It affects Qualcomm Snapdragon c...

CVE-2021-1975

CRITICAL CVSS 9.8 Nov 12, 2021

CVE-2021-1975 is a critical heap overflow vulnerability in Qualcomm Snapdragon chipsets that allows remote code execution via malformed DNS responses. Attackers can exploit this to execute arbitrary c...

CVE-2021-1916

CRITICAL CVSS 9.8 Sep 8, 2021

This vulnerability allows attackers to execute arbitrary code or cause denial of service by exploiting a buffer underflow in Qualcomm Snapdragon chipsets. It affects numerous Qualcomm-powered devices ...

CVE-2021-1920

CRITICAL CVSS 9.8 Sep 8, 2021

CVE-2021-1920 is an integer underflow vulnerability in Qualcomm Snapdragon chipsets' RTCP packet handling that allows remote code execution. Attackers can send specially crafted RTCP packets to trigge...

CVE-2020-11159

CRITICAL CVSS 9.1 Jun 9, 2021

This CVE describes a buffer over-read vulnerability in Qualcomm Snapdragon chipsets when processing WPA/RSN information elements in Wi-Fi beacon and response frames. Attackers can exploit this to read...

CVE-2020-11227

CRITICAL CVSS 9.8 Mar 17, 2021

This vulnerability allows attackers to write data beyond allocated memory boundaries while parsing RTT/TTY packets in Qualcomm Snapdragon chipsets. It affects numerous Snapdragon-powered devices acros...

CVE-2020-11299

CRITICAL CVSS 9.8 Mar 17, 2021

A buffer overflow vulnerability in Qualcomm Snapdragon video processing allows attackers to execute arbitrary code by playing specially crafted video files. This affects numerous Snapdragon-powered de...

CVE-2020-11188

CRITICAL CVSS 9.1 Mar 17, 2021

This vulnerability is a buffer over-read in Qualcomm Snapdragon chipsets when parsing SDP values without proper NULL termination checks. It allows attackers to read memory beyond allocated buffers, po...

CVE-2020-11190

CRITICAL CVSS 9.1 Mar 17, 2021

CVE-2020-11190 is a buffer over-read vulnerability in Qualcomm Snapdragon chipsets that allows attackers to read memory beyond allocated buffers when parsing SDP values. This can lead to information d...

CVE-2020-11166

CRITICAL CVSS 9.1 Mar 17, 2021

This vulnerability allows an attacker to cause an out-of-bounds read exception by sending specially crafted ROHC headers with excessive padding to affected Qualcomm Snapdragon devices. Successful expl...

CVE-2020-11272

CRITICAL CVSS 9.8 Feb 22, 2021

This is a use-after-free vulnerability in Qualcomm Snapdragon chipsets that allows attackers to execute arbitrary code or cause denial of service. It affects a wide range of Snapdragon-powered devices...

CVE-2020-11276

CRITICAL CVSS 9.1 Feb 22, 2021

This vulnerability is a buffer over-read in Qualcomm Snapdragon chipsets that occurs when processing Wi-Fi P2P (Peer-to-Peer) information elements and NOA (Notice of Absence) attributes in beacon and ...

CVE-2025-27074

HIGH CVSS 8.8 Nov 4, 2025

This vulnerability involves memory corruption while processing a GP command response in Qualcomm components, potentially allowing attackers to execute arbitrary code or cause denial of service. It aff...

CVE-2025-27053

HIGH CVSS 7.8 Oct 9, 2025

This vulnerability allows memory corruption in Qualcomm's PlayReady APP implementation when processing TA commands, potentially enabling arbitrary code execution. It affects devices with Qualcomm chip...

CVE-2025-21482

HIGH CVSS 7.1 Sep 24, 2025

This CVE describes a cryptographic vulnerability in RSA PKCS padding decoding that could allow attackers to decrypt sensitive data or forge digital signatures. It affects Qualcomm products implementin...

CVE-2018-11816

HIGH CVSS 7.8 Nov 26, 2024

CVE-2018-11816 is a use-after-free vulnerability in Android's MediaServer component that allows attackers to execute arbitrary code with elevated privileges. Attackers can exploit this by sending a sp...

CVE-2024-21468

HIGH CVSS 8.4 Apr 1, 2024

CVE-2024-21468 is a use-after-free vulnerability in Qualcomm GPU drivers where failed memory unmapping operations can lead to memory corruption. This allows attackers to potentially execute arbitrary ...

CVE-2023-28547

HIGH CVSS 8.4 Apr 1, 2024

This CVE describes a memory corruption vulnerability in the SPS Application's sorter Trusted Application (TA) when requesting public keys. Successful exploitation could allow attackers to execute arbi...

CVE-2023-43511

HIGH CVSS 7.5 Jan 2, 2024

This vulnerability allows attackers to cause a denial-of-service (DoS) condition in Qualcomm WLAN firmware by sending specially crafted IPv6 packets with IPPROTO_NONE as the next header in extension h...

CVE-2023-28546

HIGH CVSS 7.8 Dec 5, 2023

This vulnerability allows memory corruption in Qualcomm's SPS application when exporting public keys in the sorter TA. Attackers could potentially execute arbitrary code or cause denial of service on ...

CVE-2023-28565

HIGH CVSS 7.8 Sep 5, 2023

This vulnerability allows memory corruption in Qualcomm's WLAN Hardware Abstraction Layer (HAL) when processing command streams through WMI interfaces. Attackers could potentially execute arbitrary co...

CVE-2023-28560

HIGH CVSS 7.8 Sep 5, 2023

This vulnerability allows memory corruption in the WLAN Hardware Abstraction Layer (HAL) when processing devIndex values from untrusted WMI payloads. Attackers could potentially execute arbitrary code...

CVE-2023-21628

HIGH CVSS 8.4 Jun 6, 2023

This vulnerability allows memory corruption in Qualcomm's WLAN Hardware Abstraction Layer (HAL) when processing specific wireless commands. Attackers could potentially execute arbitrary code or cause ...

CVE-2022-40515

HIGH CVSS 7.3 Mar 10, 2023

This vulnerability allows memory corruption through a double-free error when processing specially crafted 3gp video files with invalid metadata atoms. Attackers could potentially execute arbitrary cod...

CVE-2021-35083

HIGH CVSS 8.2 Jun 14, 2022

This vulnerability allows attackers to read memory beyond intended boundaries due to improper certificate chain validation in Qualcomm Snapdragon chipsets. It affects devices using vulnerable Snapdrag...

CVE-2021-35072

HIGH CVSS 7.8 Jun 14, 2022

This vulnerability allows attackers to execute arbitrary code or cause denial of service on Qualcomm Snapdragon devices by sending specially crafted DIAG commands. It affects various Snapdragon platfo...

CVE-2021-30254

HIGH CVSS 7.8 Nov 12, 2021

This vulnerability allows attackers to execute arbitrary code or cause denial of service through a buffer overflow in Qualcomm's factory calibration and test DIAG command. It affects numerous Snapdrag...

CVE-2021-30284

HIGH CVSS 7.5 Nov 12, 2021

This vulnerability in Qualcomm Snapdragon chipsets allows attackers to potentially expose sensitive information or cause denial of service by exploiting improper handling of NAS messages when integrit...

CVE-2021-30310

HIGH CVSS 7.5 Oct 20, 2021

This vulnerability allows attackers to cause buffer overflow by sending specially crafted CF-ACK and CF-Poll data frames to affected Qualcomm Snapdragon chipsets. It affects a wide range of Snapdragon...

CVE-2020-11303

HIGH CVSS 8.6 Oct 20, 2021

This vulnerability in Qualcomm Snapdragon chipsets allows information disclosure when devices accept AMSDU frames with mismatched destination and source addresses. Attackers can potentially intercept ...

CVE-2021-1959

HIGH CVSS 7.8 Oct 20, 2021

This vulnerability in Qualcomm Snapdragon chipsets allows memory corruption due to improper input validation when handling index values. Attackers could exploit this to execute arbitrary code or cause...

CVE-2021-30261

HIGH CVSS 8.4 Sep 17, 2021

This vulnerability allows attackers to trigger integer and heap overflows by sending specially crafted beacon template update commands to affected Qualcomm Snapdragon chipsets. Successful exploitation...

CVE-2021-1935

HIGH CVSS 7.1 Sep 9, 2021

This vulnerability in Qualcomm Snapdragon chipsets allows potential denial of service or arbitrary code execution due to a null pointer dereference during key import operations. It affects multiple Sn...

CVE-2021-1909

HIGH CVSS 7.3 Sep 9, 2021

CVE-2021-1909 is a buffer overflow vulnerability in Qualcomm Snapdragon trusted applications due to insufficient parameter length validation. This allows attackers to execute arbitrary code in trusted...

CVE-2021-1914

HIGH CVSS 7.5 Sep 8, 2021

CVE-2021-1914 is an infinite loop vulnerability in Qualcomm Snapdragon chipsets where improper handling of unsupported input can cause a denial of service condition. This affects various Snapdragon pl...

CVE-2021-1889

HIGH CVSS 8.4 Jul 13, 2021

This vulnerability allows a buffer overflow in Qualcomm Snapdragon Trusted Applications due to missing length validation. Attackers could potentially execute arbitrary code with elevated privileges. A...

CVE-2020-11235

HIGH CVSS 7.8 Jun 9, 2021

CVE-2020-11235 is a buffer overflow vulnerability in Qualcomm Snapdragon chipsets that occurs when parsing unified commands without proper input validation. Attackers could exploit this to execute arb...

CVE-2020-11239

HIGH CVSS 7.8 Jun 9, 2021

This CVE describes a use-after-free vulnerability in Qualcomm Snapdragon chipsets when handling DMA buffer imports. Attackers could exploit this to execute arbitrary code or cause denial of service on...

CVE-2020-11251

HIGH CVSS 8.2 Apr 7, 2021

CVE-2020-11251 is an out-of-bounds read vulnerability in Qualcomm Snapdragon chipsets that allows attackers to read memory beyond allocated buffers when processing DTMF payloads. This affects numerous...

CVE-2020-11234

HIGH CVSS 8.4 Apr 7, 2021

This CVE describes a use-after-free vulnerability in Qualcomm Snapdragon chipsets where a socket freed by one thread can still be accessed by another thread, passing invalid information. This could al...