---
cve: "CVE-2026-14164"
severity: "HIGH"
cvss: 7.5
epss: "49%"
vendor: "Red Hat"
kev: false
exploited: false
published: "2026-06-30 07:16:32"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T14:31:48+02:00"
---

# CVE-2026-14164

> 7.5 HIGH · 🧪 PoC

## Beschreibung

A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service.

## CVSS-Vektor

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

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

## Referenzen

- <https://access.redhat.com/errata/RHSA-2026:30333>
- <https://access.redhat.com/errata/RHSA-2026:52674>
- <https://access.redhat.com/errata/RHSA-2026:52675>
- <https://access.redhat.com/errata/RHSA-2026:54387>
- <https://access.redhat.com/errata/RHSA-2026:54760>
- <https://access.redhat.com/errata/RHSA-2026:54769>
- <https://access.redhat.com/errata/RHSA-2026:56954>
- <https://access.redhat.com/errata/RHSA-2026:58558>
- <https://access.redhat.com/errata/RHSA-2026:58573>
- <https://access.redhat.com/errata/RHSA-2026:58574>
- <https://access.redhat.com/errata/RHSA-2026:58981>
- <https://access.redhat.com/errata/RHSA-2026:61783>
- <https://access.redhat.com/errata/RHSA-2026:62409>
- <https://access.redhat.com/errata/RHSA-2026:63041>
- <https://access.redhat.com/errata/RHSA-2026:63044>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-14164) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_