Vulnerability Database

308,926

Total vulnerabilities in the database

CVE-2001-0323

The ICMP path MTU (PMTU) discovery feature in various UNIX systems allows remote attackers to cause a denial of service by spoofing "ICMP Fragmentation needed but Don't Fragment (DF) set" packets between two target hosts, which could cause one host to lower its MTU when transmitting to the other host.

  • Published: Jun 2, 2001
  • Updated: Nov 9, 2025
  • CVE: CVE-2001-0323
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 6.4
  • AV:N/AC:L/Au:N/C:N/I:P/A:P

No CWE or OWASP classifications available.