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CVE-2025-48990

NeKernel has Heap Overflow in `rt_copy_memory` PUBLISHED

Description (CNA)

NeKernal is a free and open-source operating system stack. Version 0.0.2 has a 1-byte heap overflow in `rt_copy_memory`, which unconditionally wrote a null terminator at `dst[len]`. When `len` equals the size of the destination buffer (256 bytes), that extra `'\0'` write overruns the buffer by one byte. To avoid breaking existing callers or changing the public API, the patch in commit fb7b7f658327f659c6a6da1af151cb389c2ca4ee takes a minimal approach: it simply removes the overflow-causing line without adding bounds checks or altering the function signature.

Affected (CNA)

Vendor / productVersions
nekernel-org / nekernelaffected = 0.0.2

CWE

CWE-122

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.