Qualcomm SM4635 Firmware vulnerabilities

77 CVEs affecting Qualcomm SM4635 Firmware, 2 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2025-47366, published 2026-02-02.

More from Qualcomm.

Highest priority

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

• 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-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-2025-21483, published 2025-09-24. Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days. Memory corruption when the UE receives an RTP packet from the network, during the reassembly of NALUs.
• CVE-2025-27034, published 2025-09-24. Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days. Memory corruption while selecting the PLMN from SOR failed list.
• CVE-2025-21450, published 2025-07-08. Critical severity, CVSS 9.1. EPSS: 0.3% chance of exploitation in the next 30 days. Cryptographic issue occurs due to use of insecure connection method while downloading.
• CVE-2024-49838, published 2025-02-03. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Information disclosure while parsing the OCI IE with invalid 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-2024-53026, published 2025-06-03. High severity, CVSS 8.2. EPSS: 0.3% chance of exploitation in the next 30 days. Information disclosure when an invalid RTCP packet is received during a VoLTE/VoWiFi IMS call.
• 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-2025-27066, published 2025-08-06. High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days. Transient DOS while processing an ANQP message.

Latest

• CVE-2025-47366, published 2026-02-02. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Cryptographic issue when a Trusted Zone with outdated code is triggered by a HLOS providing incorrect input.
• CVE-2025-47348, published 2026-01-07. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing identity credential operations in the trusted application.
• CVE-2025-47346, published 2026-01-07. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing a secure logging command in the trusted application.
• CVE-2025-47345, published 2026-01-07. High severity, CVSS 8.4. EPSS: 0.1% chance of exploitation in the next 30 days. Cryptographic issue may occur while encrypting license data.
• CVE-2025-47344, published 2026-01-07. Medium severity, CVSS 6.4. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while handling sensor utility operations.
• CVE-2025-47339, published 2026-01-07. High severity, CVSS 7.8. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while deinitializing a HDCP session.
• CVE-2025-47334, published 2026-01-07. Medium severity, CVSS 6.7. EPSS: 0.1% chance of exploitation in the next 30 days. Memory corruption while processing shared command buffer packet between camera userspace and kernel.
• 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.
• CVE-2025-47331, published 2026-01-07. Medium severity, CVSS 6.1. EPSS: 0.1% chance of exploitation in the next 30 days. Information disclosure while processing a firmware event.
• CVE-2025-47330, published 2026-01-07. Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days. Transient DOS while parsing video packets received from the video firmware.