Qualcomm WCN3620 Firmware vulnerabilities

372 CVEs affecting Qualcomm WCN3620 Firmware, 6 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2025-59610, published 2026-06-01.

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-2026-21385: Qualcomm Multiple Chipsets Memory Corruption Vulnerability, published 2026-03-02. High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2026-03-03. EPSS: 1.3% chance of exploitation in the next 30 days. Memory corruption while using alignments for memory allocation.
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-2021-1906: Qualcomm Multiple Chipsets Detection of Error Condition Without Action Vulnerability, published 2021-05-07. Medium severity, CVSS 5.5. Actively exploited: in CISA KEV since 2021-11-03. EPSS: 0.5% chance of exploitation in the next 30 days. Improper handling of address deregistration on failure can lead to new GPU address allocation failure. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT,…
CVE-2021-30351, published 2022-01-03. Critical severity, CVSS 9.8. EPSS: 4% chance of exploitation in the next 30 days. An out of bound memory access can occur due to improper validation of number of frames being passed during music playback in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon…
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,…

Latest

CVE-2025-59610, published 2026-06-01. Medium severity, CVSS 6.4. EPSS: 0.1% chance of exploitation in the next 30 days. Memory Corruption when processing IOCTL requests with mismatched API versions due to concurrent modification of user-space buffer.
CVE-2025-47383, published 2026-03-02. High severity, CVSS 7.2. EPSS: 0.1% chance of exploitation in the next 30 days. Weak configuration may lead to cryptographic issue when a VoWiFi call is triggered from UE.
CVE-2025-47333, published 2026-01-07. Medium severity, CVSS 6.6. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while handling buffer mapping operations in the cryptographic driver.
CVE-2025-47320, published 2025-12-18. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing MFC channel configuration during music playback.
CVE-2025-27074, published 2025-11-04. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing a GP command response.
CVE-2025-21488, published 2025-09-24. High severity, CVSS 8.2. EPSS: 0.3% chance of exploitation in the next 30 days. Information disclosure while decoding this RTP packet headers received by UE from the network when the padding bit is set.
CVE-2025-21487, published 2025-09-24. High severity, CVSS 8.2. EPSS: 0.3% chance of exploitation in the next 30 days. Information disclosure while decoding RTP packet received by UE from the network, when payload length mentioned is greater than the available buffer length.
CVE-2025-21484, published 2025-09-24. High severity, CVSS 8.2. EPSS: 0.3% chance of exploitation in the next 30 days. Information disclosure when UE receives the RTP packet from the network, while decoding and reassembling the fragments from RTP packet.
CVE-2025-21483, published 2025-09-24. Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days. Memory corruption when the UE receives an RTP packet from the network, during the reassembly of NALUs.