CVSS 3.1
2.9 lowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:LCVE-2026-16517
Low (2.9). EPSS 0.1% chance of exploitation in the next 30 days.
A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.
Severity
- EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 1% of CVEs (scores of 2026-10-31)
- CWE
- CWE-190
- Published
- Modified
- Record from
- the NVD, synced