Vulnerability Report

CVE-2009-1755

Title: Nlnetlabs Nsd RCE

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2009-1755.

CWE Category CWE-189

Published Date May 22, 2009

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 5.0 CVSS v2.0

Exploit Probability (EPSS)

3.16%

Vulnerability Summary

CVE-2009-1755: Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors that trigger a buffer overflow.

Impacted Vendors

nlnetlabs 1

Reference Links

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=529418 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=529420 http://www.nlnetlabs.nl/publications/NSD_vulnerability_announcement.html http://www.openwall.com/lists/oss-security/2009/05/19/1 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=529418 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=529420 http://www.nlnetlabs.nl/publications/NSD_vulnerability_announcement.html http://www.openwall.com/lists/oss-security/2009/05/19/1

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2009-1755 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 09, 2025 MODIFIED

Vulnerability data or affected products updated.

May 22, 2009 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected Stack

No specific products linked.