CVE-2001-0414 describes a critical buffer overflow vulnerability in the ntpd daemon (versions 4.0.99k and earlier, including xntpd and xntp3). This flaw allows unauthenticated remote attackers to trigger a denial of service and potentially execute arbitrary code by sending a specially crafted, long readvar argument. With a CVSS score of 10.0, this vulnerability is highly severe, indicating easy exploitation over the network with complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, multiple Metasploit modules and ExploitDB entries confirm readily available exploit code, though there is no evidence of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.0.99kCPE matchmatch criteria | cpe:2.3:a:dave_mills:ntpd:*:*:*:*:*:*:*:* | ||
4.0.99CPE matchmatch criteria | cpe:2.3:a:dave_mills:ntpd:4.0.99:*:*:*:*:*:*:* | ||
4.0.99aCPE matchmatch criteria | cpe:2.3:a:dave_mills:ntpd:4.0.99a:*:*:*:*:*:*:* | ||
4.0.99bCPE matchmatch criteria | cpe:2.3:a:dave_mills:ntpd:4.0.99b:*:*:*:*:*:*:* | ||
4.0.99cCPE matchmatch criteria | cpe:2.3:a:dave_mills:ntpd:4.0.99c:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.