Modem 5123 Firmware vulnerabilities

7 known vulnerabilities in Modem 5123 Firmware from Samsung. 7 are rated high or critical. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.

Latest first

• 7.5 High severity

  Exynos 1080 Firmware: Uncontrolled Resource Consumption

  CVE-2025-43706Jan 5, 2026Samsung

  An issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2400, 1580, 9110, W920, W930, Modem 5123, and Modem 5400. Incorrect handling of RRC packets leads to a Denial of Service.

• 9.1 Critical severity

  Exynos 990 Firmware: Out-of-bounds Write

  CVE-2025-27807Jan 5, 2026Samsung

  An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 9110, W920, W930, W1000, Modem 5123, Modem 5300, Modem 5400. The lack of a length check leads to out-

• 7.5 High severity

  Modem 5123 Firmware: Uncontrolled Resource Consumption

  CVE-2025-49494Nov 4, 2025Samsung

  An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 2100, 1280, 2200, 1330, 1380, 1480, 9110, Modem 5123. Mishandling of an 5G NRMM packet leads to a Denial of Service.

• 7.5 High severity

  Exynos 1280 Firmware: Heap-based Buffer Overflow

  CVE-2025-54329Nov 4, 2025Samsung

  An issue was discovered in NAS in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, W920, W930, W1000, Modem 5123, Modem 5300, and Modem 5400. The function used to send a multipl

• 7.5 High severity

  Exynos W920 Firmware: Uncontrolled Resource Consumption

  CVE-2025-26782Oct 20, 2025Samsung

  An issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 9110, W920, W930, Modem 5123, and Modem 5300. Incorrect handling of RLC AM PDUs leads to a Denial of Servic

• 7.5 High severity

  An issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem…

  CVE-2025-26781Oct 20, 2025Samsung

  An issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 9110, W920, W930, Modem 5123, and Modem 5300. Incorrect handling of RLC AM PDUs leads to a Denial of Servic

• 9.1 Critical severity

  Exynos 980 Firmware: Out-of-bounds Write

  CVE-2025-47202Jul 7, 2025Samsung

  In RRC in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 9110, W920, W930, W1000, Modem 5123, Modem 5300, and Modem 5400, the lack of a length check leads to out-of-bounds wri