---
cve: "CVE-2026-16517"
severity: "LOW"
cvss: 2.9
epss: "0.1%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-07-21 23:17:00"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-24T07:11:50+02:00"
---

# CVE-2026-16517

> 2.9 LOW

## Beschreibung

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-Vektor

```
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Gering | warn |

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-16517) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_