Qualcomm QCA6421 Firmware vulnerabilities

432 CVEs affecting Qualcomm QCA6421 Firmware, 4 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2025-27070, published 2025-11-04.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2020-11261: Qualcomm Multiple Chipsets Improper Input Validation Vulnerability, published 2021-06-09. High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2021-12-01. EPSS: 1.6% chance of exploitation in the next 30 days. Memory corruption due to improper check to return error when user application requests memory allocation of a huge size in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon…
CVE-2021-1905: Qualcomm Multiple Chipsets Use-After-Free Vulnerability, published 2021-05-07. High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2021-11-03. EPSS: 1.5% chance of exploitation in the next 30 days. 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,…
CVE-2023-33107: Qualcomm Multiple Chipsets Integer Overflow Vulnerability, published 2023-12-05. High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2023-12-05. EPSS: 0.7% chance of exploitation in the next 30 days. Memory corruption in Graphics Linux while assigning shared virtual memory region during IOCTL call.
CVE-2023-33063: Qualcomm Multiple Chipsets Use-After-Free Vulnerability, published 2023-12-05. High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2023-12-05. EPSS: 0.7% chance of exploitation in the next 30 days. Memory corruption in DSP Services during a remote call from HLOS to DSP.
CVE-2020-11301, published 2021-09-08. High severity, CVSS 7.5. EPSS: 11.1% chance of exploitation in the next 30 days. Improper authentication of un-encrypted plaintext Wi-Fi frames in an encrypted network can lead to information disclosure in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon…
CVE-2022-40507, published 2023-06-06. High severity, CVSS 7.8. EPSS: 1.3% chance of exploitation in the next 30 days. Memory corruption due to double free in Core while mapping HLOS address to the list.
CVE-2020-11192, published 2021-03-17. Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days. Out of bound write while parsing SDP string due to missing check on null termination in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial…
CVE-2020-11299, published 2021-03-17. Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days. Buffer overflow can occur in video while playing the non-standard clip in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon…
CVE-2020-11190, published 2021-03-17. Critical severity, CVSS 9.1. EPSS: 1% chance of exploitation in the next 30 days. Buffer over-read can happen while parsing received SDP values due to lack of NULL termination check on SDP in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT,…
CVE-2020-11189, published 2021-03-17. Critical severity, CVSS 9.1. EPSS: 1% chance of exploitation in the next 30 days. Buffer over-read can happen while parsing received SDP values due to lack of NULL termination check on SDP in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT,…

Latest

CVE-2025-27070, published 2025-11-04. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while performing encryption and decryption commands.
CVE-2025-27054, published 2025-10-09. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing a malformed license file during reboot.
CVE-2025-27053, published 2025-10-09. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption during PlayReady APP usecase while processing TA commands.
CVE-2025-27032, published 2025-09-24. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. memory corruption while loading a PIL authenticated VM, when authenticated VM image is loaded without maintaining cache coherency.
CVE-2025-21481, published 2025-09-24. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while performing private key encryption in trusted application.
CVE-2025-27066, published 2025-08-06. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Transient DOS while processing an ANQP message.
CVE-2025-21465, published 2025-08-06. Medium severity, CVSS 6.5. EPSS: 0.1% chance of exploitation in the next 30 days. Information disclosure while processing the hash segment in an MBN file.
CVE-2025-21464, published 2025-08-06. Medium severity, CVSS 6.5. EPSS: 0.1% chance of exploitation in the next 30 days. Information disclosure while reading data from an image using specified offset and size parameters.
CVE-2025-21452, published 2025-08-06. High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days. Transient DOS while processing a random-access response (RAR) with an invalid PDU length on LTE network.
CVE-2025-21446, published 2025-07-08. High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days. Transient DOS may occur when processing vendor-specific information elements while parsing a WLAN frame for BTM requests.