Qualcomm Snapdragon x5 Lte Modem Firmware vulnerabilities

70 CVEs affecting Qualcomm Snapdragon x5 Lte Modem Firmware, 1 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-24088, published 2026-06-01.

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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-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-2022-33259, published 2023-04-13. Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days. Memory corruption due to buffer copy without checking the size of input in modem while decoding raw SMS received.
• CVE-2022-33211, published 2023-04-13. Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days. memory corruption in modem due to improper check while calculating size of serialized CoAP message
• CVE-2022-25740, published 2023-04-13. Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days. Memory corruption in modem due to buffer overwrite while building an IPv6 multicast address based on the MAC address of the iface
• CVE-2022-25678, published 2023-04-13. Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days. Memory correction in modem due to buffer overwrite during coap connection
• 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-2022-33304, published 2023-05-02. High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days. Transient DOS due to NULL pointer dereference in Modem while performing pullup for received TCP/UDP packet.
• CVE-2022-33294, published 2023-04-13. High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days. Transient DOS in Modem due to NULL pointer dereference while receiving response of lwm2m registration/update/bootstrap request message.

Latest

• CVE-2026-24088, published 2026-06-01. High severity, CVSS 8.2. EPSS: 0.1% chance of exploitation in the next 30 days. Cryptographic Issue while processing a specific partition which allows unauthorized write access to load a customized bootloader.
• 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-2025-47320, published 2025-12-18. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing MFC channel configuration during music playback.
• CVE-2025-27053, published 2025-10-09. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption during PlayReady APP usecase while processing TA commands.
• CVE-2025-47318, published 2025-09-24. High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days. Transient DOS while parsing the EPTM test control message to get the test pattern.
• CVE-2025-21482, published 2025-09-24. High severity, CVSS 7.1. EPSS: 0.1% chance of exploitation in the next 30 days. Cryptographic issue while performing RSA PKCS padding decoding.
• 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-2025-21430, published 2025-04-07. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Transient DOS while connecting STA to AP and initiating ADD TS request from AP to establish TSpec session.