Qualcomm Snapdragon 660 Mobile Firmware vulnerabilities

25 CVEs affecting Qualcomm Snapdragon 660 Mobile Firmware, 1 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2025-47404, published 2026-05-04.

Highest priority

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

CVE-2024-43047: Qualcomm Multiple Chipsets Use-After-Free Vulnerability, published 2024-10-07. High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2024-10-08. EPSS: 0.7% chance of exploitation in the next 30 days. Memory corruption while maintaining memory maps of HLOS memory.
CVE-2023-43548, published 2024-03-04. Critical severity, CVSS 9.8. EPSS: 0.3% chance of exploitation in the next 30 days. Memory corruption while parsing qcp clip with invalid chunk data size.
CVE-2023-43551, published 2024-06-03. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Cryptographic issue while performing attach with a LTE network, a rogue base station can skip the authentication phase and immediately send the Security Mode Command.
CVE-2025-21427, published 2025-07-08. High severity, CVSS 8.2. EPSS: 0.2% chance of exploitation in the next 30 days. Information disclosure while decoding this RTP packet Payload when UE receives the RTP packet from the network.
CVE-2025-21454, published 2025-07-08. High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days. Transient DOS while processing received beacon frame.
CVE-2025-21449, published 2025-07-08. High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days. Transient DOS may occur while processing malformed length field in SSID IEs.
CVE-2024-33060, published 2024-09-02. High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days. Memory corruption when two threads try to map and unmap a single node simultaneously.
CVE-2024-33052, published 2024-09-02. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption when user provides data for FM HCI command control operations.
CVE-2023-28578, published 2024-03-04. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption in Core Services while executing the command for removing a single event listener.
CVE-2023-43527, published 2024-05-06. Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days. Information disclosure while parsing dts header atom in Video.

Latest

CVE-2025-47404, published 2026-05-04. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption when dynamically changing the size of a previously allocated buffer while its contents are being modified.
CVE-2025-47398, published 2026-02-02. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory Corruption while deallocating graphics processing unit memory buffers due to improper handling of memory pointers.
CVE-2025-27061, published 2025-07-08. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption whhile handling the subsystem failure memory during the parsing of video packets received from the video firmware.
CVE-2025-27043, published 2025-07-08. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing manipulated payload in video firmware.
CVE-2025-27042, published 2025-07-08. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing video packets received from video firmware.
CVE-2025-21467, published 2025-05-06. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while reading the FW response from the shared queue.
CVE-2025-21453, published 2025-05-06. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing a data structure, when an iterator is accessed after it has been removed, potential failures occur.