HIGH
ntpd security hole
Published Sep 18, 2001
10.0
HIGHCVSS 2.0
EPSS 91.68%
Description
Buffer overflow in ntpd ntp daemon 4.0.99k and earlier (aka xntpd and xntp3) allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long readvar argument.
Affected products
No data.
OR
- ≤ 4.0.99k
- 4.0.99
- 4.0.99a
- 4.0.99b
- 4.0.99c
- 4.0.99d
- 4.0.99e
- 4.0.99f
- 4.0.99g
- 4.0.99h
- 4.0.99i
- 4.0.99j
- 5.93
- 5.93a
- 5.93b
- 5.93c
- 5.93d
- 5.93e
No data.
Red Hat Linux 5.2
n/a
Fixed · RHSA-2001:045
Red Hat Linux 6.2
n/a
Fixed · RHSA-2001:045
Red Hat Linux 7.0
n/a
Fixed · RHSA-2001:045
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Linux 5.2 | n/a | Fixed | RHSA-2001:045 |
| Red Hat Linux 6.2 | n/a | Fixed | RHSA-2001:045 |
| Red Hat Linux 7.0 | n/a | Fixed | RHSA-2001:045 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
10.0 HIGH NVD
AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
91.68% 0.91679
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.91679
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 91.68% (0.91679) | 99.81th | v5 (v2026.06.15) |
| Jun 15, 2026 | 91.68% (0.91679) | 99.80th | v5 (v2026.06.15) |
| Jan 29, 2026 | 81.16% (0.81157) | 99.13th | v4 (v2025.03.14) |
| Dec 19, 2025 | 83.32% (0.83321) | 99.23th | v4 (v2025.03.14) |
| Apr 10, 2025 | 87.75% (0.87747) | 99.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 89.67% (0.89669) | 99.55th | v4 (v2025.03.14) |
| Dec 17, 2024 | 90.34% (0.90345) | 99.07th | v3 (v2023.03.01) |
| Feb 23, 2024 | 96.76% (0.96763) | 99.64th | v3 (v2023.03.01) |
| Aug 19, 2023 | 96.72% (0.96717) | 99.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.81% (0.96812) | 99.42th | v3 (v2023.03.01) |
| Mar 6, 2023 | 71.35% (0.71349) | 99.19th | v2 (v2022.01.01) |
| Feb 4, 2022 | 71.35% (0.71349) | 99.03th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (28)
- ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:31.ntpd.asc vendor-advisoryx_refsource_FREEBSD
- ftp://ftp.netbsd.org/pub/NetBSD/misc/security/advisories/NetBSD-SA2001-004.txt.asc vendor-advisoryx_refsource_NETBSD
- ftp://ftp.sco.com/SSE/sse073.ltr vendor-advisoryx_refsource_SCO
- ftp://ftp.sco.com/SSE/sse074.ltr vendor-advisoryx_refsource_SCO
- http://archives.neohapsis.com/archives/bugtraq/2001-04/0127.html mailing-listx_refsource_BUGTRAQ
- http://archives.neohapsis.com/archives/bugtraq/2001-04/0225.html mailing-listx_refsource_BUGTRAQ
- http://archives.neohapsis.com/archives/bugtraq/2001-04/0314.html mailing-listx_refsource_BUGTRAQ
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000392 vendor-advisoryx_refsource_CONECTIVA
- http://lists.suse.com/archives/suse-security-announce/2001-Apr/0000.html vendor-advisoryx_refsource_SUSE
- http://marc.info/?l=bugtraq&m=98642418618512&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=bugtraq&m=98654963328381&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=bugtraq&m=98659782815613&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=bugtraq&m=98679815917014&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=bugtraq&m=98683952401753&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=bugtraq&m=98684202610470&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=bugtraq&m=98684532921941&w=2 mailing-listx_refsource_BUGTRAQ
- http://www.calderasystems.com/support/security/advisories/CSSA-2001-013.0.txt vendor-advisoryx_refsource_CALDERA
- http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-036.php3 vendor-advisoryx_refsource_MANDRAKEPatchVendor Advisory
- http://www.osvdb.org/805 vdb-entryx_refsource_OSVDB
- http://www.redhat.com/support/errata/RHSA-2001-045.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/2540 vdb-entryx_refsource_BIDExploitPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2001-0414 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=34813 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6321 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2001-0414
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3831 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2001-0414
- https://www.debian.org/security/2001/dsa-045 vendor-advisoryx_refsource_DEBIAN
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 18, 2001
Updated Aug 8, 2024
Reserved May 24, 2001
Link CVE-2001-0414
CISA Vulnrichment
Updated n/a