Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows remote attackers to execute arbitrary commands via…

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.

Scores

EPSS (exploitation in 30 days)

38.7% · top 1.4% of all CVEs (3 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.

Weakness

• n/a
• CWE-120 (opens in a new tab)All about CWE-120 and its CVEs

Affected products

• n/a

  • affected n/a

References (21)

• CLA-2001:413 (opens in a new tab)vendor-advisoryx_refsource_CONECTIVAx_transferred
• MDKSA-2001:068 (opens in a new tab)vendor-advisoryx_refsource_MANDRAKEx_transferred
• L-131 (opens in a new tab)third-party-advisorygovernment-resourcex_refsource_CIACx_transferred
• SSRT0745U (opens in a new tab)vendor-advisoryx_refsource_COMPAQx_transferred
• telnetd-option-telrcv-bo(6875) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 809 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
• MSS-OAR-E01-2001:298 (opens in a new tab)vendor-advisoryx_refsource_IBMx_transferred
• 20010725 Telnetd AYT overflow scanner (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 20010810 ADV/EXP: netkit <=0.17 in.telnetd remote buffer overflow (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• 3064 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• RHSA-2001:100 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• SuSE-SA:2001:029 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• RHSA-2001:099 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 20020129 Cisco CatOS Telnet Buffer Vulnerability (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
• HPSBUX0110-172 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
• DSA-075 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 20010718 multiple vendor telnet daemon vulnerability (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
• CA-2001-21 (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
• CSSA-2001-030.0 (opens in a new tab)vendor-advisoryx_refsource_CALDERAx_transferred
• DSA-070 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• 20010725 SCO - Telnetd AYT overflow ? (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2001-0554](https://trackcve.app/badge/CVE-2001-0554.svg)](https://trackcve.app/cve/CVE-2001-0554)

Record last updated 8 Aug 2024, 04:21 UTC.