CVE-2001-1540

IPRoute 0.973, 0.974 and 1.18 allows remote attackers to cause a denial of service via fragmented IP packets that split the TCP header.

Published: 2001-12-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-1540 is rated Moderate Risk (43.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.23%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2001-1540

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.66% 1.23% +0.57%
2 2025-03-17 0.33% 0.66% +0.33%
3 2024-09-17 — 0.33% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-1540

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2001-1540

Affected software / configurations for CVE-2001-1540

Vendor Product Version Raw CPE
david_f._mischler iproute 0.973 cpe:2.3:a:david_f._mischler:iproute:0.973:*:*:*:*:*:*:*
david_f._mischler iproute 0.974 cpe:2.3:a:david_f._mischler:iproute:0.974:*:*:*:*:*:*:*
david_f._mischler iproute 1.18 cpe:2.3:a:david_f._mischler:iproute:1.18:*:*:*:*:*:*:*

References for CVE-2001-1540

cvelogic Threat Intelligence