Dashboard / CVE-2026-16517

CVE-2026-16517

LOW
INFO Priority: 0.00 BB Relevance: 31/100
Published: 2026-07-21 Modified: 2026-11-06 First seen: 2026-11-02 Status: active

Attack Surface

No Auth No Interaction

CVSS Vector Breakdown

AV: Local
AC: High
PR: None
UI: None
S: Unchanged
C: None
I: None
A: Low

Description

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.

Weakness Classification (1)

References & Advisories (4)

https://access.redhat.com/errata/RHSA-2026:43818
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:69553
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2505492
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

31 / 100
✓ No authentication
✓ No user interaction

CVSS Score

2.9 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS — Exploitation Probability

0.10%
Raw Score 0.001050
Percentile 1.1%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00105
2026-11-12
0.00105
2026-11-10
0.00105
2026-11-09
0.00105
2026-11-08
0.00105
2026-11-07
0.00105
2026-11-06
0.00105
2026-11-05
0.00105
2026-11-04
0.00105
2026-11-03
0.00105
2026-11-02
0.00105

Intelligence Sources

mitre ref →
nvd ref →

External Links