CVE-2026-53266

Linux Kernel: Mehrere Schwachstellen

F5 F5OS, Debian Linux, Amazon Linux 2, Red Hat Enterprise Linux, Ubuntu Linux, SUSE Linux, IBM QRadar SIEM, SUSE…

In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebt_snat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source address rewrite behind skb_ensure_writable(skb, 0). This is intentional: at the bridge ebtables hooks the Ethernet header is addressed through skb_mac_header()/eth_hdr(), while skb->data points at the Ethernet payload. Asking skb_ensure_writable() for ETH_HLEN bytes would check the payload, not the…

25. Jun 2026

Ausgewertete Quellen

• CERT-Bund
  WID-SEC-2026-2077
• CISA
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-53266
• CISA
  Linux Kernel Out-of-Bounds Write Vulnerability
• NVD
  CVE-2026-53266