Vulnerability Database

346,508

Total vulnerabilities in the database

CVE-2011-3270 — cisco / ios

Unspecified vulnerability in Cisco IOS 12.2SB before 12.2(33)SB10 and 15.0S before 15.0(1)S3a on Cisco 10000 series routers allows remote attackers to cause a denial of service (device reload) via a sequence of crafted ICMP packets, aka Bug ID CSCtk62453.

  • Published: Oct 3, 2011
  • Updated: Nov 9, 2025
  • CVE: CVE-2011-3270
  • Severity: High
  • Exploit:

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 From Fixed in
cisco / ios 12.2(28)sb 12.2(28)sb.x
cisco / ios 12.2(28)sb1 12.2(28)sb1.x
cisco / ios 12.2(28)sb2 12.2(28)sb2.x
cisco / ios 12.2(28)sb3 12.2(28)sb3.x
cisco / ios 12.2(28)sb4 12.2(28)sb4.x
cisco / ios 12.2(28)sb5 12.2(28)sb5.x
cisco / ios 12.2(28)sb6 12.2(28)sb6.x
cisco / ios 12.2(28)sb7 12.2(28)sb7.x
cisco / ios 12.2(28)sb8 12.2(28)sb8.x
cisco / ios 12.2(28)sb9 12.2(28)sb9.x
cisco / ios 12.2(28)sb10 12.2(28)sb10.x
cisco / ios 12.2(28)sb11 12.2(28)sb11.x
cisco / ios 12.2(28)sb12 12.2(28)sb12.x
cisco / ios 12.2(28)sb13 12.2(28)sb13.x
cisco / ios 12.2(31)sb2 12.2(31)sb2.x
cisco / ios 12.2(31)sb3 12.2(31)sb3.x
cisco / ios 12.2(31)sb3x 12.2(31)sb3x.x
cisco / ios 12.2(31)sb5 12.2(31)sb5.x
cisco / ios 12.2(31)sb6 12.2(31)sb6.x
cisco / ios 12.2(31)sb7 12.2(31)sb7.x
cisco / ios 12.2(31)sb8 12.2(31)sb8.x
cisco / ios 12.2(31)sb9 12.2(31)sb9.x
cisco / ios 12.2(31)sb10 12.2(31)sb10.x
cisco / ios 12.2(31)sb11 12.2(31)sb11.x
cisco / ios 12.2(31)sb12 12.2(31)sb12.x
cisco / ios 12.2(31)sb13 12.2(31)sb13.x
cisco / ios 12.2(31)sb14 12.2(31)sb14.x
cisco / ios 12.2(31)sb15 12.2(31)sb15.x
cisco / ios 12.2(31)sb16 12.2(31)sb16.x
cisco / ios 12.2(31)sb17 12.2(31)sb17.x
cisco / ios 12.2(31)sb18 12.2(31)sb18.x
cisco / ios 12.2(31)sb19 12.2(31)sb19.x
cisco / ios 12.2(31)sb20 12.2(31)sb20.x
cisco / ios 12.2(31)sb21 12.2(31)sb21.x
cisco / ios 12.2(33)sb 12.2(33)sb.x
cisco / ios 12.2(33)sb1 12.2(33)sb1.x
cisco / ios 12.2(33)sb2 12.2(33)sb2.x
cisco / ios 12.2(33)sb3 12.2(33)sb3.x
cisco / ios 12.2(33)sb4 12.2(33)sb4.x
cisco / ios 12.2(33)sb5 12.2(33)sb5.x
cisco / ios 12.2(33)sb6 12.2(33)sb6.x
cisco / ios 12.2(33)sb7 12.2(33)sb7.x
cisco / ios 12.2(33)sb8 12.2(33)sb8.x
cisco / ios 12.2(33)sb8a 12.2(33)sb8a.x
cisco / ios 12.2(33)sb9 12.2(33)sb9.x
cisco / ios 12.2sb 12.2sb.x
cisco / ios 15.0(1)s1 15.0(1)s1.x
cisco / ios 15.0(1)s2 15.0(1)s2.x
cisco / ios 15.0s 15.0s.x
cisco / 10008_router - -

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.