Qualcomm Snapdragon 685 4g Mobile Firmware vulnerabilities

49 CVEs affecting Qualcomm Snapdragon 685 4g Mobile Firmware, 1 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-24082, published 2026-05-04.

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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-2024-21477, published 2024-05-06. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Transient DOS while parsing a protected 802.11az Fine Time Measurement (FTM) frame.
• CVE-2023-43529, published 2024-05-06. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Transient DOS while processing IKEv2 Informational request messages, when a malformed fragment packet is received.
• CVE-2023-33086, published 2024-03-04. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Transient DOS while processing multiple IKEV2 Informational Request to device from IPSEC server with different identifiers.
• CVE-2024-49838, published 2025-02-03. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Information disclosure while parsing the OCI IE with invalid length.
• CVE-2024-21480, published 2024-05-06. Critical severity, CVSS 9.8. EPSS: 0.3% chance of exploitation in the next 30 days. Memory corruption while playing audio file having large-sized input buffer.
• CVE-2024-21463, published 2024-04-01. Critical severity, CVSS 9.8. EPSS: 0.3% chance of exploitation in the next 30 days. Memory corruption while processing Codec2 during v13k decoder pitch synthesis.
• 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.

Latest

• CVE-2026-24082, published 2026-05-04. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory Corruption when copying data from a freed source while executing performance counter deselect operation.
• CVE-2025-47407, published 2026-05-04. High severity, CVSS 7.0. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while creating a process on the digital signal processor due to allocation failure at the kernel level.
• 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-2025-47397, published 2026-02-02. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory Corruption when initiating GPU memory mapping using scatter-gather lists due to unchecked IOMMU mapping errors.
• CVE-2025-47366, published 2026-02-02. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Cryptographic issue when a Trusted Zone with outdated code is triggered by a HLOS providing incorrect input.
• 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-2025-27052, published 2025-07-08. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing data packets in diag received from Unix clients.
• 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.