CVE-2025-62817: Samsung Exynos Mobile Processor NULL pointer dereference in NPU

CVE-2025-62817 · Severity: high · CVSS 7.5 · Published 2026-03-03

Samsung Exynos mobile processors contain a NULL pointer dereference vulnerability in the Neural Processing Unit (NPU) firmware that can cause the processor to crash and become unavailable. An attacker who can trigger specific NPU operations could force a denial of service, disrupting device functionality and potentially causing data loss during critical operations.

Technologies: Samsung Exynos 1280, Samsung Exynos 1280 Firmware, Samsung Exynos 1380, Samsung Exynos 1380 Firmware, Samsung Exynos 1480, Samsung Exynos 1480 Firmware, Samsung Exynos 1580, Samsung Exynos 1580 Firmware, Samsung Exynos 2200, Samsung Exynos 2200 Firmware, Samsung Exynos 2400, Samsung Exynos 2400 Firmware, Samsung Exynos 2500, Samsung Exynos 2500 Firmware. Vendors: Samsung.

Quick answers

Is CVE-2025-62817 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-62817 being exploited in the wild.
How severe is CVE-2025-62817?
High severity, with a CVSS score of 7.5, published 3 March 2026.
Which products and versions are affected?
Samsung Exynos 1280 all; Samsung Exynos 1380 all; Samsung Exynos 1480 all; Samsung Exynos 1580 all; and 3 more.
Is there a fix for CVE-2025-62817?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2025-62817 attacked?
It is attacked over the network or with local access, in device firmware.
Am I affected by CVE-2025-62817?
Check whether you run Samsung Exynos 1280, Samsung Exynos 1280 Firmware, Samsung Exynos 1380 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A NULL pointer dereference exists in the __pilot_parsing_ncp() function within the NPU firmware of affected Exynos processors, where the session->ncp_hdr_buf pointer is not properly validated before use. The vulnerability is triggered through malformed or specially crafted NCP (Neural Compute Protocol) input during parsing, causing an unhandled exception. The affected component is the NPU (Neural Processing Unit) firmware, which is accessible to code running on the processor with appropriate capabilities. Successful exploitation results in a denial of service as the NPU crashes or the entire SoC may need to be reset. A fix is available from Samsung through firmware updates for affected Exynos generations.

Affected products

  • Samsung Exynos 1280 all
  • Samsung Exynos 2200 all
  • Samsung Exynos 1380 all
  • Samsung Exynos 1480 all
  • Samsung Exynos 2400 all
  • Samsung Exynos 1580 all
  • Samsung Exynos 2500 all

Timeline

  • 2025-09-29: disclosed
  • 2026-03-03: advisory

References

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