Is CVE-2025-64031 being exploited?

No public exploit is currently tracked.

How severe is CVE-2025-64031?

CVE-2025-64031 has a CVSS v3 severity of LOW (2.5).

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CVE-2025-64031

Description

libarchive 3.8.x before 3.8.2 has a strcpy heap-based buffer overflow in the gzip writer via the original-filename field to archive_compressor_gzip_open in archive_write_add_filter_gzip.c, aka GHSA-92wx-p669-8gr9. This relates to bsdtar. Exploitation envisions a marginally plausible scenario in which original-filename is obtained from an untrusted party. (original-filename is not derived from the input data.)