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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…
Medium6.4EPSS 1.7%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.4 | AV:N/AC:L/Au:N/C:N/I:P/A:P |
- EPSS (exploitation in 30 days)
- 1.7% · top 23% of all CVEs (3 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.4.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (4)
- icmp-pmtu-dos(5975) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20010115 ICMP fragmentation required but DF set problems. (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- MDVSA-2013:150 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .