A vulnerability labeled as critical has been found in rxi microtar up to 0.1.0 . The impacted element is the function raw_to_header of the file src/microtar.c of the component TAR Handler . Such manipulation leads to stack-based buffer overflow. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is listed as CVE-2026-43623 . The attack may be performed from remote. There is no available exploit.