Qualcomm Snapdragon 665 Mobile Firmware vulnerabilities

15 CVEs affecting Qualcomm Snapdragon 665 Mobile Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2025-21454, published 2025-07-08.

More from Qualcomm.

Highest priority

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

• 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-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-2025-21454, 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-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-2024-21468, published 2024-04-01. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption when there is failed unmap operation in GPU.
• CVE-2023-33023, published 2024-04-01. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing finish_sign command to pass a rsp buffer.
• CVE-2023-28547, published 2024-04-01. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption in SPS Application while requesting for public key in sorter TA.

Latest

• CVE-2025-21433, published 2025-07-08. Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days. Transient DOS when importing a PKCS#8-encoded RSA private key with a zero-sized modulus.
• CVE-2025-21432, published 2025-07-08. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while retrieving the CBOR data from TA.
• CVE-2024-49835, published 2025-05-06. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while reading secure file.
• CVE-2023-43542, published 2024-06-03. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while copying a keyblob`s material when the key material`s size is not accurately checked.