Which products and versions are affected by CVE-2004-1060?

Affected: Icmp; Tcp. The full list is in the CVE brief.

Is CVE-2004-1060 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2004-1060 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2004-1060?

Public exploit code is available.

Is there a fix for CVE-2004-1060?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2004-1060 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2004-1060

MediumPublic exploit

Published Apr 12, 2004 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2004-1060 is a medium-severity vulnerability (CVSS 5.0 v2) affecting Icmp, Tcp.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 75% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

5.0

AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS (30-day exploit likelihood)

75%

Higher than 99.4% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2004-1060 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Multiple TCP/IP and ICMP implementations, when using Path MTU (PMTU) discovery (PMTUD), allow remote attackers to cause a denial of service (network throughput reduction for TCP connections) via forged ICMP ("Fragmentation Needed and Don't Fragment was Set") packets with a low next-hop MTU value, aka the "Path MTU discovery attack." NOTE: CVE-2004-0790, CVE-2004-0791, and CVE-2004-1060 have been SPLIT based on different attacks; CVE-2005-0065, CVE-2005-0066, CVE-2005-0067, and CVE-2005-0068 are related identifiers that are SPLIT based on the underlying vulnerability. While CVE normally SPLITs based on vulnerability, the attack-based identifiers exist due to the variety and number of affected implementations and solutions that address the attacks instead of the underlying vulnerabilities.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
IcmpIcmp	See advisory	n/a
TcpTcp	See advisory	n/a

Timeline

Publicly disclosed
Apr 12, 2004
Last updated
Apr 15, 2026

References

advisory20050412 Crafted ICMP Messages Can Cause Denial of Service
advisoryhttp://www.gont.com.ar/drafts/icmp-attacks-against-tcp.html
advisoryhttp://www.uniras.gov.uk/niscc/docs/al-20050412-00308.html?lang=en
exploitExploitDB-25388
exploitExploitDB-942

15 more references in the full CVE brief

FAQ

Common Questions.

Multiple TCP/IP and ICMP implementations, when using Path MTU (PMTU) discovery (PMTUD), allow remote attackers to cause a denial of service (network throughput reduction for TCP connections) via forged ICMP ("Fragmentation Needed and Don't Fragment was Set") packets with a low next-hop MTU value, aka the "Path MTU dis…
Affected: Icmp; Tcp. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2004-1060 Running On Your Attack Surface?

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