Vulnerability Database

325,773

Total vulnerabilities in the database

CVE-2005-3481

Cisco IOS 12.0 to 12.4 might allow remote attackers to execute arbitrary code via a heap-based buffer overflow in system timers. NOTE: this issue does not correspond to a specific vulnerability, rather a general weakness that only increases the feasibility of exploitation of any vulnerabilities that might exist. Such design-level weaknesses normally are not included in CVE, so perhaps this issue should be REJECTed.

  • Published: Nov 3, 2005
  • Updated: Nov 9, 2025
  • CVE: CVE-2005-3481
  • Severity: High
  • Exploit:

CVSS v2:

  • Severity: High
  • Score: 9.3
  • AV:N/AC:M/Au:N/C:C/I:C/A:C

No CWE or OWASP classifications available.

Software From Fixed in
cisco / ios 12.1xg 12.1xg.x
cisco / ios 12.0xc 12.0xc.x
cisco / ios 12.3yq 12.3yq.x
cisco / ios 12.3xr 12.3xr.x
cisco / ios 12.0xk 12.0xk.x
cisco / ios 12.4t 12.4t.x
cisco / ios 12.0xr 12.0xr.x
cisco / ios 12.1xm 12.1xm.x
cisco / ios 12.1xi 12.1xi.x
cisco / ios 12.3bc 12.3bc.x
cisco / ios 12.0st 12.0st.x
cisco / ios 12.2xr 12.2xr.x
cisco / ios 12.1e 12.1e.x
cisco / ios 12.1xc 12.1xc.x
cisco / ios 12.3ya 12.3ya.x
cisco / ios 12.1xp 12.1xp.x
cisco / ios 12.2cz 12.2cz.x
cisco / ios 12.1ya 12.1ya.x
cisco / ios 12.2sxf 12.2sxf.x
cisco / ios 12.1yd 12.1yd.x
cisco / ios 12.2fy 12.2fy.x
cisco / ios 12.0dc 12.0dc.x
cisco / ios 12.2zn 12.2zn.x
cisco / ios 12.0xq 12.0xq.x
cisco / ios 12.1xs 12.1xs.x
cisco / ios 12.2xe 12.2xe.x
cisco / ios 12.0xe 12.0xe.x
cisco / ios 12.3xs 12.3xs.x
cisco / ios 12.2ja 12.2ja.x
cisco / ios 12.2sx 12.2sx.x
cisco / ios 12.3xg 12.3xg.x
cisco / ios 12.2zp 12.2zp.x
cisco / ios 12.3bw 12.3bw.x
cisco / ios 12.1xy 12.1xy.x
cisco / ios 12.3xd 12.3xd.x
cisco / ios 12.2ca 12.2ca.x
cisco / ios 12.3xm 12.3xm.x
cisco / ios 12.2bz 12.2bz.x
cisco / ios 12.2ys 12.2ys.x
cisco / ios 12.0xd 12.0xd.x
cisco / ios 12.3xw 12.3xw.x
cisco / ios 12.4mr 12.4mr.x
cisco / ios 12.2xj 12.2xj.x
cisco / ios 12.2su 12.2su.x
cisco / ios 12.2xh 12.2xh.x
cisco / ios 12.2xg 12.2xg.x
cisco / ios 12.2ew 12.2ew.x
cisco / ios 12.0xj 12.0xj.x
cisco / ios 12.2b 12.2b.x
cisco / ios 12.1t 12.1t.x
cisco / ios 12.1eo 12.1eo.x
cisco / ios 12.3xi 12.3xi.x
cisco / ios 12.1xr 12.1xr.x
cisco / ios 12.2yn 12.2yn.x
cisco / ios 12.1az 12.1az.x
cisco / ios 12.2sxa 12.2sxa.x
cisco / ios 12.1db 12.1db.x
cisco / ios 12.2ey 12.2ey.x
cisco / ios 12.3yj 12.3yj.x
cisco / ios 12.2xb 12.2xb.x
cisco / ios 12.2yf 12.2yf.x
cisco / ios 12.2sg 12.2sg.x
cisco / ios 12.1xe 12.1xe.x
cisco / ios 12.2xl 12.2xl.x
cisco / ios 12.2ym 12.2ym.x
cisco / ios 12.2yw 12.2yw.x
cisco / ios 12.3yu 12.3yu.x
cisco / ios 12.2yd 12.2yd.x
cisco / ios 12.3xj 12.3xj.x
cisco / ios 12.0xl 12.0xl.x
cisco / ios 12.0xs 12.0xs.x
cisco / ios 12.3t 12.3t.x
cisco / ios 12.2yb 12.2yb.x
cisco / ios 12.3 12.3.x
cisco / ios 12.2mb 12.2mb.x
cisco / ios 12.2dd 12.2dd.x
cisco / ios 12.1eu 12.1eu.x
cisco / ios 12.1xb 12.1xb.x
cisco / ios 12.2zh 12.2zh.x
cisco / ios 12.1yf 12.1yf.x
cisco / ios 12.2yv 12.2yv.x
cisco / ios 12.1xl 12.1xl.x
cisco / ios 12.1ax 12.1ax.x
cisco / ios 12.2sxb 12.2sxb.x
cisco / ios 12.2yo 12.2yo.x
cisco / ios 12.2xw 12.2xw.x
cisco / ios 12.1ev 12.1ev.x
cisco / ios 12.2t 12.2t.x
cisco / ios 12.2zc 12.2zc.x
cisco / ios 12.0xb 12.0xb.x
cisco / ios 12.2sv 12.2sv.x
cisco / ios 12.2yt 12.2yt.x
cisco / ios 12.0xh 12.0xh.x
cisco / ios 12.0t 12.0t.x
cisco / ios 12.1xw 12.1xw.x
cisco / ios 12.2yl 12.2yl.x
cisco / ios 12.2za 12.2za.x
cisco / ios 12.2xn 12.2xn.x
cisco / ios 12.2ye 12.2ye.x
cisco / ios 12.1yb 12.1yb.x
cisco / ios 12.2ez 12.2ez.x
cisco / ios 12.3yd 12.3yd.x
cisco / ios 12.1eb 12.1eb.x
cisco / ios 12.2zb 12.2zb.x
cisco / ios 12.2yg 12.2yg.x
cisco / ios 12.2ex 12.2ex.x
cisco / ios 12.1dc 12.1dc.x
cisco / ios 12.2xu 12.2xu.x
cisco / ios 12.2sbc 12.2sbc.x
cisco / ios 12.1ex 12.1ex.x
cisco / ios 12.1yi 12.1yi.x
cisco / ios 12.3xf 12.3xf.x
cisco / ios 12.2yr 12.2yr.x
cisco / ios 12.2se 12.2se.x
cisco / ios 12.1 12.1.x
cisco / ios 12.0sl 12.0sl.x
cisco / ios 12.1yh 12.1yh.x
cisco / ios 12.3yk 12.3yk.x
cisco / ios 12.0db 12.0db.x
cisco / ios 12.3yf 12.3yf.x
cisco / ios 12.0sz 12.0sz.x
cisco / ios 12.1ec 12.1ec.x
cisco / ios 12.1cx 12.1cx.x
cisco / ios 12.0w5 12.0w5.x
cisco / ios 12.2xm 12.2xm.x
cisco / ios 12.3yt 12.3yt.x
cisco / ios 12.2sy 12.2sy.x
cisco / ios 12.2xk 12.2xk.x
cisco / ios 12.1xh 12.1xh.x
cisco / ios 12.3xb 12.3xb.x
cisco / ios 12.2zj 12.2zj.x
cisco / ios 12.0xa 12.0xa.x
cisco / ios 12.1xu 12.1xu.x
cisco / ios 12.0sc 12.0sc.x
cisco / ios 12.2jk 12.2jk.x
cisco / ios 12.3yg 12.3yg.x
cisco / ios 12.1xj 12.1xj.x
cisco / ios 12.3xu 12.3xu.x
cisco / ios 12.2zd 12.2zd.x
cisco / ios 12.3xy 12.3xy.x
cisco / ios 12.2cy 12.2cy.x
cisco / ios 12.3xc 12.3xc.x
cisco / ios 12.4 12.4.x
cisco / ios 12.2so 12.2so.x
cisco / ios 12.1aa 12.1aa.x
cisco / ios 12.2tpc 12.2tpc.x
cisco / ios 12.0xn 12.0xn.x
cisco / ios 12.2xc 12.2xc.x
cisco / ios 12.2ewa 12.2ewa.x
cisco / ios 12.2bc 12.2bc.x
cisco / ios 12.3xe 12.3xe.x
cisco / ios 12.0da 12.0da.x
cisco / ios 12.1xx 12.1xx.x
cisco / ios 12.0sp 12.0sp.x
cisco / ios 12.2yc 12.2yc.x
cisco / ios 12.2ze 12.2ze.x
cisco / ios 12.3tpc 12.3tpc.x
cisco / ios 12.3ja 12.3ja.x
cisco / ios 12.2xs 12.2xs.x
cisco / ios 12.2yp 12.2yp.x
cisco / ios 12.4xa 12.4xa.x
cisco / ios 12.2yy 12.2yy.x
cisco / ios 12.2fx 12.2fx.x
cisco / ios 12.2sz 12.2sz.x
cisco / ios 12.2xi 12.2xi.x
cisco / ios 12.0wc 12.0wc.x
cisco / ios 12.1ey 12.1ey.x
cisco / ios 12.2yu 12.2yu.x
cisco / ios 12.0xm 12.0xm.x
cisco / ios 12.1xd 12.1xd.x
cisco / ios 12.2dx 12.2dx.x
cisco / ios 12.1ez 12.1ez.x
cisco / ios 12.2xd 12.2xd.x
cisco / ios 12.2bx 12.2bx.x
cisco / ios 12.3xq 12.3xq.x
cisco / ios 12.2cx 12.2cx.x
cisco / ios 12.2zl 12.2zl.x
cisco / ios 12.2yq 12.2yq.x
cisco / ios 12.3xh 12.3xh.x
cisco / ios 12.1xq 12.1xq.x
cisco / ios 12.0s 12.0s.x
cisco / ios 12.2xf 12.2xf.x
cisco / ios 12.1ay 12.1ay.x
cisco / ios 12.2xq 12.2xq.x
cisco / ios 12.3ys 12.3ys.x
cisco / ios 12.1ea 12.1ea.x
cisco / ios 12.2zf 12.2zf.x
cisco / ios 12.3b 12.3b.x
cisco / ios 12.2eu 12.2eu.x
cisco / ios 12.1xf 12.1xf.x
cisco / ios 12.3yh 12.3yh.x
cisco / ios 12.2ya 12.2ya.x
cisco / ios 12.1ew 12.1ew.x
cisco / ios 12.4xb 12.4xb.x
cisco / ios 12.1da 12.1da.x
cisco / ios 12.2xv 12.2xv.x
cisco / ios 12.2 12.2.x
cisco / ios 12.1xa 12.1xa.x
cisco / ios 12.0xg 12.0xg.x
cisco / ios 12.2zg 12.2zg.x
cisco / ios 12.3xx 12.3xx.x
cisco / ios 12.0 12.0.x
cisco / ios 12.1yc 12.1yc.x
cisco / ios 12.2sw 12.2sw.x
cisco / ios 12.3xa 12.3xa.x
cisco / ios 12.3yi 12.3yi.x
cisco / ios 12.0xv 12.0xv.x
cisco / ios 12.2yk 12.2yk.x
cisco / ios 12.2sxd 12.2sxd.x
cisco / ios 12.2yz 12.2yz.x
cisco / ios 12.2xa 12.2xa.x
cisco / ios 12.1xt 12.1xt.x
cisco / ios 12.0sx 12.0sx.x
cisco / ios 12.0xf 12.0xf.x
cisco / ios 12.0xi 12.0xi.x
cisco / ios 12.1ye 12.1ye.x
cisco / ios 12.3xk 12.3xk.x
cisco / ios 12.1xv 12.1xv.x
cisco / ios 12.2yj 12.2yj.x
cisco / ios 12.2jx 12.2jx.x
cisco / ios 12.2mc 12.2mc.x
cisco / ios 12.1yj 12.1yj.x
cisco / ios 12.2yx 12.2yx.x
cisco / ios 12.2sxe 12.2sxe.x
cisco / ios 12.2by 12.2by.x
cisco / ios 12.2yh 12.2yh.x
cisco / ios 12.2s 12.2s.x
cisco / ios 12.2xt 12.2xt.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.