Qualcomm Snapdragon x12 Lte Modem Firmware vulnerabilities

82 CVEs affecting Qualcomm Snapdragon x12 Lte Modem Firmware, 4 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-57554, published 2026-10-06.

More from Qualcomm.

Highest priority

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

• 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-2023-33106: Qualcomm Multiple Chipsets Use of Out-of-Range Pointer Offset Vulnerability, published 2023-12-05. High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2023-12-05. EPSS: 0.8% chance of exploitation in the next 30 days. Memory corruption while submitting a large list of sync points in an AUX command to the IOCTL_KGSL_GPU_AUX_COMMAND.
• 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-2022-40507, published 2023-06-06. High severity, CVSS 7.8. EPSS: 1.3% chance of exploitation in the next 30 days. Memory corruption due to double free in Core while mapping HLOS address to the list.
• CVE-2023-22385, published 2023-10-03. Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days. Memory Corruption in Data Modem while making a MO call or MT VOLTE call.
• CVE-2022-40503, published 2023-04-13. High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days. Information disclosure due to buffer over-read in Bluetooth Host while A2DP streaming.
• CVE-2023-24847, published 2023-10-03. High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days. Transient DOS in Modem while allocating DSM items.
• CVE-2023-33054, published 2023-12-05. Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days. Cryptographic issue in GPS HLOS Driver while downloading Qualcomm GNSS assistance data.
• CVE-2023-24849, published 2023-10-03. High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days. Information Disclosure in data Modem while parsing an FMTP line in an SDP message.

Latest

• CVE-2026-57554, published 2026-10-06. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory Corruption when asynchronous threads access shared performance counter data simultaneously during FastRPC invocations.
• 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-2025-47386, published 2026-03-02. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory Corruption while invoking IOCTL calls when concurrent access to shared buffer occurs.
• 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-2025-47379, published 2026-03-02. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory Corruption when concurrent access to shared buffer occurs due to improper synchronization between assignment and deallocation of buffer resources.
• CVE-2025-47376, published 2026-03-02. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory Corruption when concurrent access to shared buffer occurs during IOCTL calls.
• CVE-2025-47375, published 2026-03-02. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while handling different IOCTL calls from the user-space simultaneously.
• CVE-2025-47369, published 2026-01-07. Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days. Information disclosure when a weak hashed value is returned to userland code in response to a IOCTL call to obtain a session ID.
• 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.