Vulnerability Monitor

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CVE-2003-0259


Cisco VPN 3000 series concentrators and Cisco VPN 3002 Hardware Client 2.x.x through 3.6.7 allows remote attackers to cause a denial of service (reload) via a malformed SSH initialization packet.


Security Impact Summary

CVE-2003-0259 is a security vulnerability that . Impacting 6 products from cisco, from cisco, from cisco and 3 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2003, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.


Published

2003-05-27T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    NVD-CWE-Other

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Hardware cisco vpn_3015_concentrator * Yes
Hardware cisco vpn_3030_concentator * Yes
Hardware cisco vpn_3060_concentrator * Yes
Hardware cisco vpn_3080_concentrator * Yes
Operating System cisco vpn_3000_concentrator_series_software 2.0 Yes
Operating System cisco vpn_3000_concentrator_series_software 2.5.2.a Yes
Operating System cisco vpn_3000_concentrator_series_software 2.5.2.b Yes
Operating System cisco vpn_3000_concentrator_series_software 2.5.2.c Yes
Operating System cisco vpn_3000_concentrator_series_software 2.5.2.d Yes
Operating System cisco vpn_3000_concentrator_series_software 2.5.2.f Yes
Operating System cisco vpn_3000_concentrator_series_software 3.0 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.0.3.a Yes
Operating System cisco vpn_3000_concentrator_series_software 3.0.3.b Yes
Operating System cisco vpn_3000_concentrator_series_software 3.0.4 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.1 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.1\(rel\) Yes
Operating System cisco vpn_3000_concentrator_series_software 3.1.1 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.1.2 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.1.4 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.5\(rel\) Yes
Operating System cisco vpn_3000_concentrator_series_software 3.5.1 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.5.2 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.5.3 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.5.4 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.5.5 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.6 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.6.1 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.6.3 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.6.5 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.6.7 Yes
Operating System cisco vpn_3000_concentrator_series_software 3.6.7.a Yes
Operating System cisco vpn_3000_concentrator_series_software 3.6.7.b Yes
Operating System cisco vpn_3000_concentrator_series_software 3.6.7.c Yes
Operating System cisco vpn_3000_concentrator_series_software 3.6.7.d Yes
Operating System cisco vpn_3000_concentrator_series_software 3.6.7d Yes
Application cisco vpn_3002_hardware_client * Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.