Vulnerability Database

326,895

Total vulnerabilities in the database

CVE-2004-1454

Cisco IOS 12.0S, 12.2, and 12.3, with Open Shortest Path First (OSPF) enabled, allows remote attackers to cause a denial of service (device reload) via a malformed OSPF packet.

  • Published: Dec 31, 2004
  • Updated: Nov 9, 2025
  • CVE: CVE-2004-1454
  • Severity: Medium
  • Exploit:

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

No CWE or OWASP classifications available.

Software From Fixed in
cisco / ios 12.2(14)sz1 12.2(14)sz1.x
cisco / ios 12.0(22)sy 12.0(22)sy.x
cisco / ios 12.3(5c) 12.3(5c).x
cisco / ios 12.3(4)xd1 12.3(4)xd1.x
cisco / ios 12.2(13)zf 12.2(13)zf.x
cisco / ios 12.2(18)sw 12.2(18)sw.x
cisco / ios 12.2(15)bz 12.2(15)bz.x
cisco / ios 12.3(5a) 12.3(5a).x
cisco / ios 12.2(15)cx 12.2(15)cx.x
cisco / ios 12.3bw 12.3bw.x
cisco / ios 12.2(11)yu 12.2(11)yu.x
cisco / ios 12.2(15)zo 12.2(15)zo.x
cisco / ios 12.3(4)t2 12.3(4)t2.x
cisco / ios 12.3(5a)b 12.3(5a)b.x
cisco / ios 12.3(4)xd2 12.3(4)xd2.x
cisco / ios 12.3t 12.3t.x
cisco / ios 12.3 12.3.x
cisco / ios 12.0(23)sz 12.0(23)sz.x
cisco / ios 12.3(5) 12.3(5).x
cisco / ios 12.3(4)t3 12.3(4)t3.x
cisco / ios 12.3(7.7) 12.3(7.7).x
cisco / ios 12.3(3e) 12.3(3e).x
cisco / ios 12.2(15)zn 12.2(15)zn.x
cisco / ios 12.3(2)t3 12.3(2)t3.x
cisco / ios 12.2(15)zk 12.2(15)zk.x
cisco / ios 12.2(13)ze 12.2(13)ze.x
cisco / ios 12.2(15)bc1 12.2(15)bc1.x
cisco / ios 12.3(4)xk 12.3(4)xk.x
cisco / ios 12.3(2)xc3 12.3(2)xc3.x
cisco / ios 12.3(4)xh 12.3(4)xh.x
cisco / ios 12.2(15)b 12.2(15)b.x
cisco / ios 12.2(15)zl 12.2(15)zl.x
cisco / ios 12.2(15)bx 12.2(15)bx.x
cisco / ios 12.0(22)s5 12.0(22)s5.x
cisco / ios 12.3(4)t 12.3(4)t.x
cisco / ios 12.2(18)se 12.2(18)se.x
cisco / ios 12.3(4)xq 12.3(4)xq.x
cisco / ios 12.2(13)zg 12.2(13)zg.x
cisco / ios 12.3(7)t 12.3(7)t.x
cisco / ios 12.3(4)eo1 12.3(4)eo1.x
cisco / ios 12.3(4)t4 12.3(4)t4.x
cisco / ios 12.3xb 12.3xb.x
cisco / ios 12.3(6) 12.3(6).x
cisco / ios 12.2(15)t 12.2(15)t.x
cisco / ios 12.0(22)s 12.0(22)s.x
cisco / ios 12.3xc 12.3xc.x
cisco / ios 12.3(4)xd 12.3(4)xd.x
cisco / ios 12.0(23)sx 12.0(23)sx.x
cisco / ios 12.3(4)t1 12.3(4)t1.x
cisco / ios 12.3xe 12.3xe.x
cisco / ios 12.2(15)zj2 12.2(15)zj2.x
cisco / ios 12.3(9) 12.3(9).x
cisco / ios 12.2(15)zj3 12.2(15)zj3.x
cisco / ios 12.2(13)zh 12.2(13)zh.x
cisco / ios 12.2(15)bc 12.2(15)bc.x
cisco / ios 12.3(5b) 12.3(5b).x
cisco / ios 12.2(18)s 12.2(18)s.x
cisco / ios 12.3(4)xg1 12.3(4)xg1.x
cisco / ios 12.2(18)sv 12.2(18)sv.x
cisco / ios 12.2(15)zj1 12.2(15)zj1.x
cisco / ios 12.2(14)sz2 12.2(14)sz2.x
cisco / ios 12.2(11)yv 12.2(11)yv.x
cisco / ios 12.2(15)mc1 12.2(15)mc1.x
cisco / ios 12.3(2)xc2 12.3(2)xc2.x
cisco / ios 12.3(2)xc1 12.3(2)xc1.x
cisco / ios 12.2(18)ew 12.2(18)ew.x
cisco / ios 12.3b 12.3b.x
cisco / ios 12.0(22)s4 12.0(22)s4.x
cisco / ios 12.2(15)zl1 12.2(15)zl1.x
cisco / ios 12.3xa 12.3xa.x
cisco / ios 12.3(1a) 12.3(1a).x
cisco / ios 12.3(6a) 12.3(6a).x
cisco / ios 12.3(5)b1 12.3(5)b1.x
cisco / ios 12.2(13)zd 12.2(13)zd.x
cisco / ios 12.2(14)sz 12.2(14)sz.x
cisco / ios 12.2(15)zj 12.2(15)zj.x
cisco / ios 12.2(15)t5 12.2(15)t5.x

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.