CVE-2025-64031
Low
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.)
SeverityLow
CVSS2.5
Exploit probability—
ProductLibarchive
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-122CWE-122
How to fix
Update
- libarchive libarchive3.8.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libarchive libarchive | 3.8.0 ≤ v < 3.8.2 | 3.8.2 |
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