Is CVE-2004-0657 being actively exploited?

CVE-2004-0657 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2004-0657?

CVE-2004-0657 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2004-0657

MEDIUM · CVSS 5.0EPSS 2.9%EU EUVD

Integer overflow in the NTP daemon (NTPd) before 4.0 causes the NTP server to return the wrong date/time offset when a client requests a date/time that is more than 34 years away from the server's time.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-190
EPSS score: 2.9% (86th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2004-0656)
Published: August 6, 2004
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2004-0656 in the EU Vulnerability Database. Last updated in EUVD on August 8, 2024.

View on the EU Vulnerability Database

Affected products

hp / tru64 unix
hp / tru64 unix
hp / tru64 unix
hp / tru64 unix
hp / tru64 unix
hp / tru64 unix
ntp / ntp

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Hewlett-Packard Tru64 UNIX V5.1A - Hewlett-Packard Company - Common Criteria CRP199 - archived

References

http://marc.info/?l=bugtraq&m=108922292425219&w=2(Mailing List, Third Party Advisory)
http://www.kb.cert.org/vuls/id/584606(Patch, Third Party Advisory, US Government Resource)
https://exchange.xforce.ibmcloud.com/vulnerabilities/15406(Third Party Advisory, VDB Entry)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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