---
cve: "CVE-2026-72319"
severity: "CRITICAL"
cvss: 9.8
epss: "0.8%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-08-15 06:22:04"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-23T17:53:25+02:00"
---

# CVE-2026-72319

> 9.8 CRITICAL

## Beschreibung

In the Linux kernel, the following vulnerability has been resolved:

ipvs: ensure inner headers in ICMP errors are in headroom

Sashiko points out that after stripping the outer headers
with pskb_pull() we should ensure the inner IP headers
in ICMP errors from tunnels are present in the skb headroom
for functions like ipv4_update_pmtu(), icmp_send() and
IP_VS_DBG().

Also, add more checks for the length of the inner headers.

## CNA-Record (Kanon, cvelistV5)

- CNA: **Linux**
- State: PUBLISHED
- Stand: 2026-10-16 18:55:17
- CNA-CVSS: **9.8** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- Kernel ≥ 5.10.261
- Kernel ≥ 5.15.212
- Kernel ≥ 6.1.178
- Kernel ≥ 6.6.145
- Kernel ≥ 6.12.97
- Kernel ≥ 6.18.40
- Kernel ≥ 7.1.5

## BSI-Hinweise (deutsch)

- [Linux Kernel: Mehrere Schwachstellen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-2852) — _BSI-Einstufung: hoch_
  Ein Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service herbeizuführen oder einen nicht näher spezifizierten Angriff durchzuführen.

## Referenzen

- <https://git.kernel.org/stable/c/19657b3a17b774ae4e2f2635b5ae8638c9344a40>
- <https://git.kernel.org/stable/c/dac813101914c21219ac221a60a31a11bc90e7ec>
- <https://git.kernel.org/stable/c/dd22f74a09e25ca298ced0a3763ef353242cb78d>
- <https://git.kernel.org/stable/c/9bc9b95aee2b2e3f1301a16a67ee504960402875>
- <https://git.kernel.org/stable/c/a735f9964a3d9ed97daf9b08507f8b5bcafe6326>
- <https://git.kernel.org/stable/c/8f48cfe657409fb5c7ba0521b14da6d47546d9cf>
- <https://git.kernel.org/stable/c/92185d6f7819bc558939ae83de7b1abe90e3b5c2>
- <https://git.kernel.org/stable/c/3f7a535ff0fa627a0132803e4c2f903ceffcbc1c>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-72319/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_