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.
CVE-2004-0657
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 3%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 85.1%
- KEV
- Not listed
Published
August 6, 2004
Last Modified
June 16, 2026
References (6)
- cve@mitrehttp://marc.info/?l=bugtraq&m=108922292425219&w=2
- cve@mitrehttp://www.kb.cert.org/vuls/id/584606
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/15406
- af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=108922292425219&w=2
- af854a3a-2127-422b-91ae-364da2661108http://www.kb.cert.org/vuls/id/584606
- af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/15406
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 29× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-13 06:07 UTCEPSS rescore
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- 2026-05-31 16:07 UTCEG score recompute
- 2026-05-31 16:07 UTCGHSA enrichment
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- 2026-05-20 16:03 UTCOSV refresh
- 2026-05-20 11:20 UTCEPSS rescore
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- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-190
- CVE-2009-0947EG 9.8CRITICAL
- CVE-2013-3493EG 9.8CRITICAL
- CVE-2013-2729EG 9.8 KEVEPSS 99%CRITICAL
- CVE-2005-1141EG 9.8CRITICAL
- CVE-2005-0102EG 9.8CRITICAL
- CVE-2002-0391EG 9.8EPSS 99%CRITICAL
- CVE-2002-0639EG 9.8EPSS 97%CRITICAL
- CVE-2013-3486EG 9.6CRITICAL
- CVE-2013-2596NVD 7.8EG 9.0 KEVHIGH
- CVE-2012-5054NVD 8.8EG 9.0 KEVEPSS 97%HIGH
Frequently asked(4)
What is CVE-2004-0657?
CVE-2004-0657 is a none vulnerability published on August 6, 2004. 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.
When was CVE-2004-0657 disclosed?
CVE-2004-0657 was first published in the National Vulnerability Database on August 6, 2004, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2004-0657 actively exploited?
CVE-2004-0657 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 85.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2004-0657?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2004-0657, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2004-0657
Is Your Infrastructure Affected by CVE-2004-0657?
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