CVE-2005-2040

Multiple buffer overflows in the getterminaltype function in telnetd for Heimdal before 0.6.5 may...

5.0 MediumFix available

Multiple buffer overflows in the getterminaltype function in telnetd for Heimdal before 0.6.5 may allow remote attackers to execute arbitrary code, a different vulnerability than CVE-2005-0468 and CVE-2005-0469.

Exploit likelihood

2.84%Down 3.7 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2005-2040
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:P/A:N
Updated: 2026-11-02

CVE List No score

Record: CVE-2005-2040
Updated: 2026-11-02

EUVDEUVD-2005-2042 No score

Record: EUVD-2005-2042
Updated: 2026-11-03

GitHub AdvisoriesGHSA-r4rj-wjf2-m94v No score

Multiple buffer overflows in the getterminaltype function in telnetd for Heimdal before 0.6.5 may...

Record: GHSA-r4rj-wjf2-m94v
Updated: 2026-11-02

OSV No score

Record: CVE-2005-2040
Updated: 2026-11-02

OSVDEBIAN-CVE-2005-2040 No score

Record: DEBIAN-CVE-2005-2040
Updated: 2026-11-02

Affected products

telnetd

Affected packages

Affected packages
Package	Affected	Fixed
`heimdal` Debian:12	before 0.6.3-11	0.6.3-11
`heimdal` Debian:13	before 0.6.3-11	0.6.3-11
`heimdal` Debian:14	before 0.6.3-11	0.6.3-11
`heimdal` Debian:3.0	before 0.4e-7.woody.10, plus listed versions 0.2l-70.2l-7.60.4e-7.woody.10.4e-7.woody.80.4e-7.woody.9	0.4e-7.woody.10
`heimdal` Debian:3.1	before 0.6.3-10sarge1, plus listed versions 0.6.3-10	0.6.3-10sarge1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2005-2040 is a medium vulnerability (CVSS 5.0) in Telnetd, published June 20, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.84%, the 86th percentile. Fixed in heimdal 0.6.3-11.