Vulnerability Database

383,371

Total vulnerabilities in the database

CVE-2005-4258 — cisco / catalyst_2980g-a

Unspecified Cisco Catalyst Switches allow remote attackers to cause a denial of service (device crash) via an IP packet with the same source and destination IPs and ports, and with the SYN flag set (aka LanD). NOTE: the provenance of this issue is unknown; the details are obtained solely from the BID.

  • Published: Dec 15, 2005
  • Updated: Sep 13, 2026
  • CVE: CVE-2005-4258
  • Severity: High
  • Exploit:
  • CISA KEV:

CVSS v2:

  • Severity: High
  • Score: 7.8
  • AV:N/AC:L/Au:N/C:N/I:N/A:C

No CWE or OWASP classifications available.

Software Affected versions
cisco / catalyst_2980g-a All versions
cisco / catalyst_4000 All versions
cisco / catalyst_2926 All versions
cisco / catalyst_1200_series All versions
cisco / catalyst_7600 All versions
cisco / catalyst_4908g-l3 All versions
cisco / catalyst_3200 All versions
cisco / catalyst_4948 All versions
cisco / catalyst_2950_lre All versions
cisco / catalyst_2940 All versions
cisco / catalyst_4500 All versions
cisco / catalyst_5000 All versions
cisco / catalyst_ws-c2924-xl All versions
cisco / catalyst_2920 All versions
cisco / catalyst_2901 All versions
cisco / catalyst_6000 All versions
cisco / catalyst_2970 All versions
cisco / catalyst_4506 All versions
cisco / catalyst_6624 All versions
cisco / catalyst_8510msr All versions
cisco / catalyst_5505 All versions
cisco / catalyst_4200 All versions
cisco / catalyst_2800_series All versions
cisco / catalyst_2955 All versions
cisco / catalyst_4912g All versions
cisco / catalyst_5509 All versions
cisco / catalyst_2926f All versions
cisco / catalyst_2926gl All versions
cisco / catalyst_2820 All versions
cisco / catalyst_2948 All versions
cisco / catalyst_6608 All versions
cisco / catalyst_8540csr All versions
cisco / catalyst_2902 All versions
cisco / catalyst_3900 All versions
cisco / catalyst_4224 All versions
cisco / catalyst_3750 All versions
cisco / catalyst_8540msr All versions
cisco / catalyst_3550 All versions
cisco / catalyst_2980g All versions
cisco / catalyst_4840g All versions
cisco / catalyst_4510r All versions
cisco / catalyst_3750_metro All versions
cisco / catalyst_8500 All versions
cisco / catalyst_8510csr All versions
cisco / catalyst_3000 All versions
cisco / catalyst_6500 All versions
cisco / catalyst_1900_series All versions
cisco / catalyst_2948g-l3 All versions
cisco / catalyst_4232 All versions
cisco / catalyst_4503 All versions
cisco / catalyst_2950 All versions
cisco / catalyst_2926gs All versions
cisco / catalyst_3560 All versions
cisco / catalyst_2948-ge-tx All versions
cisco / catalyst_4232-13 All versions
cisco / catalyst_2926t All versions
cisco / catalyst_4507r All versions
cisco / catalyst_2900 All versions
cisco / catalyst_3500_xl All versions
cisco / catalyst = 4.5_(10)
cisco / catalyst = sup2plus
cisco / catalyst = sup3
cisco / catalyst_1900_series = 9.0_0.07
cisco / catalyst_2820 = 9.0_0.07
cisco / catalyst_2900 = lre_xl
cisco / catalyst_2900 = xl
cisco / catalyst_6000_ws-svc-nam-1 = 2.2(1a)
cisco / catalyst_6000_ws-svc-nam-1 = 3.1(1a)
cisco / catalyst_6000_ws-svc-nam-2 = 2.2(1a)
cisco / catalyst_6000_ws-svc-nam-2 = 3.1(1a)
cisco / catalyst_6000_ws-x6380-nam = 2.1(2)
cisco / catalyst_6000_ws-x6380-nam = 3.1(1a)
cisco / catalyst_6500_ws-svc-nam-1 = 2.2(1a)
cisco / catalyst_6500_ws-svc-nam-1 = 3.1(1a)
cisco / catalyst_6500_ws-svc-nam-2 = 2.2(1a)
cisco / catalyst_6500_ws-svc-nam-2 = 3.1(1a)
cisco / catalyst_6500_ws-x6380-nam = 2.1(2)
cisco / catalyst_6500_ws-x6380-nam = 3.1(1a)
cisco / catalyst_7600_ws-svc-nam-1 = 2.2(1a)
cisco / catalyst_7600_ws-svc-nam-1 = 3.1(1a)
cisco / catalyst_7600_ws-svc-nam-2 = 2.2(1a)
cisco / catalyst_7600_ws-svc-nam-2 = 3.1(1a)
cisco / catalyst_7600_ws-x6380-nam = 2.1(2)
cisco / catalyst_7600_ws-x6380-nam = 3.1(1a)
cisco / catos = 3.0(7)
cisco / catos = 4.5(2)
cisco / catos = 4.5(3)
cisco / catos = 4.5(4)
cisco / catos = 4.5(4b)
cisco / catos = 4.5(5)
cisco / catos = 4.5(6)
cisco / catos = 4.5(7)
cisco / catos = 4.5(8)
cisco / catos = 4.5(9)
cisco / catos = 4.5(10)
cisco / catos = 4.5(11)
cisco / catos = 4.5(12)
cisco / catos = 4.5(13a)
cisco / catos = 5.1
cisco / catos = 5.1(1)
cisco / catos = 5.1(1a)
cisco / catos = 5.1(2a)
cisco / catos = 5.2
cisco / catos = 5.2(1)
cisco / catos = 5.2(1a)
cisco / catos = 5.2(2)
cisco / catos = 5.2(3)
cisco / catos = 5.2(4)
cisco / catos = 5.2(5)
cisco / catos = 5.2(6)
cisco / catos = 5.2(7)
cisco / catos = 5.3(1)csx
cisco / catos = 5.3(1a)csx
cisco / catos = 5.3(2)csx
cisco / catos = 5.3(3)csx
cisco / catos = 5.3(4)csx
cisco / catos = 5.3(5)csx
cisco / catos = 5.3(5a)csx
cisco / catos = 5.3(6)csx
cisco / catos = 5.4
cisco / catos = 5.4(1)
cisco / catos = 5.4(2)
cisco / catos = 5.4(3)
cisco / catos = 5.4(4)
cisco / catos = 5.5
cisco / catos = 5.5(1)
cisco / catos = 5.5(2)
cisco / catos = 5.5(3)
cisco / catos = 5.5(4)
cisco / catos = 5.5(4a)
cisco / catos = 5.5(4b)
cisco / catos = 5.5(5)
cisco / catos = 5.5(6)
cisco / catos = 5.5(7)
cisco / catos = 5.5(13)
cisco / catos = 5.5(19)
cisco / catos = 6.1(1)
cisco / catos = 6.1(1a)
cisco / catos = 6.1(1b)
cisco / catos = 6.1(1c)
cisco / catos = 6.1(1d)
cisco / catos = 6.1(2)
cisco / catos = 6.1(2.13)
cisco / catos = 6.1(3)
cisco / catos = 6.2(0.110)
cisco / catos = 6.2(0.111)
cisco / catos = 6.2(3)
cisco / catos = 6.3(0.7)pan
cisco / catos = 6.3(4)
cisco / catos = 6.3(5)
cisco / catos = 6.4(4a)
cisco / catos = 7.1
cisco / catos = 7.1(2)
cisco / catos = 7.2(2)
cisco / catos = 7.5(1)
cisco / catos = 7.6(1)
cisco / catos = 7.6(2)
cisco / ios = 11.2(8.2)sa6
cisco / ios = 12.0(5.2)xu

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.