Integer overflow in the NTP daemon (NTPd) before 4.0 causes the NTP server to return the…
Priority LOW 28CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.02854 86th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* | before 4.0 | Vulnerable | NTP Project |
| cpe:2.3:o:hp:tru64_unix:4.0f:patch_kit8:*:*:*:*:*:* | 4.0f patch_kit8 | Vulnerable | Hewlett Packard Enterprise |
| cpe:2.3:o:hp:tru64_unix:4.0g:patch_kit4:*:*:*:*:*:* | 4.0g patch_kit4 | Vulnerable | Hewlett Packard Enterprise |
| cpe:2.3:o:hp:tru64_unix:5.1b:patch_kit2:*:*:*:*:*:* | 5.1b patch_kit2 | Vulnerable | Hewlett Packard Enterprise |
| cpe:2.3:o:hp:tru64_unix:5.1b:patch_kit3:*:*:*:*:*:* | 5.1b patch_kit3 | Vulnerable | Hewlett Packard Enterprise |
| cpe:2.3:o:hp:tru64_unix:5.1b:patch_kit4:*:*:*:*:*:* | 5.1b patch_kit4 | Vulnerable | Hewlett Packard Enterprise |
| cpe:2.3:o:hp:tru64_unix:51.1a:patch_kit6:*:*:*:*:*:* | 51.1a patch_kit6 | Vulnerable | Hewlett Packard Enterprise |
- cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:* Versions before 4.0 Vulnerable ·NTP Project
- cpe:2.3:o:hp:tru64_unix:4.0f:patch_kit8:*:*:*:*:*:* Versions 4.0f patch_kit8 Vulnerable ·Hewlett Packard Enterprise
- cpe:2.3:o:hp:tru64_unix:4.0g:patch_kit4:*:*:*:*:*:* Versions 4.0g patch_kit4 Vulnerable ·Hewlett Packard Enterprise
- cpe:2.3:o:hp:tru64_unix:5.1b:patch_kit2:*:*:*:*:*:* Versions 5.1b patch_kit2 Vulnerable ·Hewlett Packard Enterprise
- cpe:2.3:o:hp:tru64_unix:5.1b:patch_kit3:*:*:*:*:*:* Versions 5.1b patch_kit3 Vulnerable ·Hewlett Packard Enterprise
- cpe:2.3:o:hp:tru64_unix:5.1b:patch_kit4:*:*:*:*:*:* Versions 5.1b patch_kit4 Vulnerable ·Hewlett Packard Enterprise
- cpe:2.3:o:hp:tru64_unix:51.1a:patch_kit6:*:*:*:*:*:* Versions 51.1a patch_kit6 Vulnerable ·Hewlett Packard Enterprise
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2004-0657
- 2026-10-03 Alias added: GHSA-gf48-63xq-mhpr
Sources
- CVE-2004-0657 · CVE Program
- CVE-2004-0657 · NVD
- FIRST EPSS
- GHSA-gf48-63xq-mhpr · GitHub Advisory Database · CC BY 4.0
- CVE-2004-0657 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences