CVE-2001-0554

critical

Description

Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows remote attackers to execute arbitrary commands via a set of options including AYT (Are You There), which is not properly handled by the telrcv function.

References

Advisories
More

https://exchange.xforce.ibmcloud.com/vulnerabilities/6875

http://www.redhat.com/support/errata/RHSA-2001-100.html

http://www.redhat.com/support/errata/RHSA-2001-099.html

http://www.debian.org/security/2001/dsa-075

http://www.debian.org/security/2001/dsa-070

http://www.cisco.com/warp/public/707/catos-telrcv-vuln-pub.shtml

http://www.cert.org/advisories/CA-2001-21.html

https://euvd.enisa.europa.eu/vulnerability/EUVD-2001-0546

http://www.securityfocus.com/bid/3064

http://www.securityfocus.com/archive/1/197804

http://www.osvdb.org/809

http://www.novell.com/linux/security/advisories/2001_029_nkitb_txt.html

http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-068.php3

http://www.ciac.org/ciac/bulletins/l-131.shtml

http://www.calderasystems.com/support/security/advisories/CSSA-2001-030.0.txt

http://online.securityfocus.com/archive/1/203000

http://online.securityfocus.com/archive/1/199541

http://online.securityfocus.com/archive/1/199496

http://online.securityfocus.com/advisories/3476

http://ftp.support.compaq.com/patches/.new/html/SSRT0745U.shtml

http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000413

http://archives.neohapsis.com/archives/hp/2001-q4/0014.html

Details

Source: Mitre, NVD

Published: 2001-08-14

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H