Qualcomm Smart Audio 400 Firmware vulnerabilities

54 CVEs affecting Qualcomm Smart Audio 400 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-24082, published 2026-05-04.

More from Qualcomm.

Highest priority

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

• CVE-2023-21631, published 2023-07-04. Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days. Weak Configuration due to improper input validation in Modem while processing LTE security mode command message received from network.
• CVE-2023-33020, published 2023-09-05. High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days. Transient DOS in WLAN Host when an invalid channel (like channel out of range) is received in STA during CSA IE.
• CVE-2023-33019, published 2023-09-05. High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days. Transient DOS in WLAN Host while doing channel switch announcement (CSA), when a mobile station receives invalid channel in CSA IE.
• 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-2024-33051, published 2024-09-02. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Transient DOS while processing TIM IE from beacon frame as there is no check for IE length.
• CVE-2024-33050, published 2024-09-02. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Transient DOS while parsing MBSSID during new IE generation in beacon/probe frame when IE length check is either missing or improper.
• CVE-2024-53027, published 2025-03-03. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Transient DOS may occur while processing the country IE.
• CVE-2024-38426, published 2025-03-03. Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days. While processing the authentication message in UE, improper authentication may lead to information disclosure.
• 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.

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-2025-47404, 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-2025-27061, 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-2025-27042, 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-2025-21454, 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-2025-21433, 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-2025-21468, published 2025-05-06. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while reading response from FW, when buffer size is changed by FW while driver is using this size to write null character at the end of buffer.