CVE-2026-16517A signed integer overflow vulnerability was found in libarchive's ZIP writer.
Updated under an hour ago ()
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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.
- CVSS
- 2.9 LOW (v3.1, NVD)CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-190
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 22, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://access.redhat.com/errata/RHSA-2026:43818
- https://access.redhat.com/errata/RHSA-2026:69553
- https://access.redhat.com/security/cve/CVE-2026-16517
- https://bugzilla.redhat.com/show_bug.cgi?id=2505492
The CVE record on cve.org NVD's entry
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