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VulnerabilitiesApr 7, 2026

‼️ CVE-2026-23398: Linux Kernel ICMP DoS Vulnerability PoC: https://t.co/qD3Vo8jHAF

CVE-2026-23398 Linux kernel ICMP DoS vulnerability disclosed with public PoC.

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Summary

A denial-of-service vulnerability (CVE-2026-23398) has been identified in the Linux kernel's ICMP handling, with a proof-of-concept exploit publicly released. The vulnerability allows attackers to trigger resource exhaustion via malformed ICMP packets, potentially impacting any system running affected kernel versions.

Indicators of Compromise

  • cve — CVE-2026-23398
  • url — https://t.co/qD3Vo8jHAF

Entities

Linux Kernel (product)ICMP (Internet Control Message Protocol) (technology)