CVE-2005-0740

Name: CVE-2005-0740
Creator: NVD / NIST
Published: 2005-01-13T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.57%

Last modified Jun 16, 2026

CVE-2005-0740 is a vulnerability of currently unknown severity. The TCP stack (tcp_input.c) in OpenBSD 3.5 and 3.6 allows remote attackers to cause a denial of service (system panic) via crafted values in the TCP timestamp option, which causes invalid arguments to be used when calculating the retransmit timeout.. EPSS estimates a 1.57% chance of exploitation in the next 30 days.

Description

The TCP stack (tcp_input.c) in OpenBSD 3.5 and 3.6 allows remote attackers to cause a denial of service (system panic) via crafted values in the TCP timestamp option, which causes invalid arguments to be used when calculating the retransmit timeout.

Metrics

EPSS Probability

1.57%

72.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Openbsd	Openbsd	2.0
Openbsd	Openbsd	2.1
Openbsd	Openbsd	2.2
Openbsd	Openbsd	2.3
Openbsd	Openbsd	2.4
Openbsd	Openbsd	2.5
Openbsd	Openbsd	2.6
Openbsd	Openbsd	2.7
Openbsd	Openbsd	2.8
Openbsd	Openbsd	2.9
Openbsd	Openbsd	3.0
Openbsd	Openbsd	3.1
Openbsd	Openbsd	3.2
Openbsd	Openbsd	3.3
Openbsd	Openbsd	3.4
Openbsd	Openbsd	3.5
Openbsd	Openbsd	3.6

References

http://secunia.com/advisories/13819
http://securitytracker.com/id?1012861Patch, Vendor Advisory
http://www.openbsd.org/errata35.htmlPatch, Vendor Advisory
http://www.securityfocus.com/bid/12250Exploit, Patch, Vendor Advisory
http://secunia.com/advisories/13819
http://securitytracker.com/id?1012861Patch, Vendor Advisory
http://www.openbsd.org/errata35.htmlPatch, Vendor Advisory
http://www.securityfocus.com/bid/12250Exploit, Patch, Vendor Advisory

Timeline

Published: Jan 13, 2005
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2005-0740?

How severe is CVE-2005-0740?

Severity scoring for CVE-2005-0740 is pending analysis. The EPSS model estimates a 1.57% probability of exploitation in the next 30 days.

How do I fix CVE-2005-0740?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2005-0740?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST