Qualcomm Snapdragon x55 5g Modem-Rf System Firmware vulnerabilities

264 CVEs affecting Qualcomm Snapdragon x55 5g Modem-Rf System Firmware, 6 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-25302, 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-2025-21479: Qualcomm Multiple Chipsets Incorrect Authorization Vulnerability, published 2025-06-03. High severity, CVSS 8.6. Actively exploited: in CISA KEV since 2025-06-03. EPSS: 0.8% chance of exploitation in the next 30 days. Memory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.
• 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-2025-21480: Qualcomm Multiple Chipsets Incorrect Authorization Vulnerability, published 2025-06-03. High severity, CVSS 8.6. Actively exploited: in CISA KEV since 2025-06-03. EPSS: 0.5% chance of exploitation in the next 30 days. Memory corruption due to unauthorized command execution in GPU micronode while executing specific sequence of commands.
• 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-2023-33042, published 2023-12-05. High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days. Transient DOS in Modem after RRC Setup message is received.
• CVE-2023-33028, published 2023-10-03. Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days. Memory corruption in WLAN Firmware while doing a memory copy of pmk cache.
• CVE-2023-28588, published 2023-12-05. High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days. Transient DOS in Bluetooth Host while rfc slot allocation.

Latest

• CVE-2026-25302, published 2026-10-06. High severity, CVSS 7.1. EPSS: 0.1% chance of exploitation in the next 30 days. Cryptographic Issue when processing non-ELF partitions, authentication and signature checks are bypassed, allowing unsigned or corrupted images to be mounted and processed.
• CVE-2026-25267, published 2026-10-06. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption when non-secure loader rewrites page tables before secure memory initialization.
• CVE-2026-25263, published 2026-10-06. Medium severity, CVSS 6.6. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing IOCTL command called from user space to the kernel with invalid parameters.
• CVE-2026-25275, published 2026-09-17. High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days. Transient DOS when processing authentication frames with invalid FILS information element header lengths.
• CVE-2026-24084, published 2026-08-04. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Weak configuration when UE does not verify the consistency of its additional security capabilities with the replayed capabilities.
• CVE-2026-24079, published 2026-08-04. High severity, CVSS 8.1. EPSS: 0.2% chance of exploitation in the next 30 days. Cryptographic Issue while processing registration requests with malformed or missing authentication parameters.
• CVE-2026-24078, published 2026-08-04. Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days. Information Disclosure when IPSec negotiation fails or is not established properly during NG-eCall SIP signaling.
• CVE-2026-24077, published 2026-08-04. Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days. Information Disclosure when processing wireless network channel switch information with improperly formatted length fields.
• CVE-2026-25277, published 2026-06-01. High severity, CVSS 8.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while using Strongbox due to buffer overflow.
• CVE-2026-25276, published 2026-06-01. High severity, CVSS 8.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while using Strongbox due to missing bounds check.