CVE-2026-50144

Summary

ncnn is a high-performance neural network inference framework optimized for the mobile platform. In commit e54f7b1f88434e1d844ea0551b880a1cfb079ce1 and earlier, ncnn allows an out-of-bounds heap write in ncnn::ParamDict::load_param() when Net::load_param() loads a malicious .param model file because the parsed parameter id is checked only against id >= NCNN_MAX_PARAM_COUNT, allowing a negative id to index before the params[NCNN_MAX_PARAM_COUNT] array. This vulnerability is fixed by commit 5a0288f255daa6c3294f77109f67718e434ec020.

Affected Software

VendorProductVersion RangeStatus
Tencentncnn< 5a0288f255daa6c3294f77109f67718e434ec020affected
Tencentncnn<= 20260526affected

Weaknesses

  • CWE-20: CWE-20: Improper Input Validation
  • CWE-129: CWE-129: Improper Validation of Array Index
  • CWE-787: CWE-787: Out-of-bounds Write

References