Vulnerability Monitor

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CVE-2013-1241


The ISM module in Cisco IOS on ISR G2 routers does not properly handle authentication-header packets, which allows remote authenticated users to cause a denial of service (module reload) via a series of malformed packets, aka Bug ID CSCub92025.


Security Impact Summary

CVE-2013-1241 is a security vulnerability that . Impacting 27 products from cisco, from cisco, from cisco and 24 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2013, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.


Published

2013-05-08T12:09:33.697

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:S/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: SINGLE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

6.8

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-287

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios - Yes
Hardware cisco 1921_integrated_services_router - Yes
Hardware cisco 1941_integrated_services_router - Yes
Hardware cisco 1941w_integrated_services_router - Yes
Hardware cisco 2901_integrated_services_router - Yes
Hardware cisco 2911_integrated_services_router - Yes
Hardware cisco 2921_integrated_services_router - Yes
Hardware cisco 2951_integrated_services_router - Yes
Hardware cisco 3925_integrated_services_router - Yes
Hardware cisco 3925e_integrated_services_router - Yes
Hardware cisco 3945_integrated_services_router - Yes
Hardware cisco 3945e_integrated_services_router - Yes
Hardware cisco 861_integrated_services_router - Yes
Hardware cisco 867_integrated_services_router - Yes
Hardware cisco 880_3g_integrated_services_router - Yes
Hardware cisco 881_integrated_services_router - Yes
Hardware cisco 886_integrated_services_router - Yes
Hardware cisco 886va-w_integrated_services_router - Yes
Hardware cisco 886va_integrated_services_router - Yes
Hardware cisco 887_integrated_services_router - Yes
Hardware cisco 887v_integrated_services_router - Yes
Hardware cisco 887va-w_integrated_services_router - Yes
Hardware cisco 887va_integrated_services_router - Yes
Hardware cisco 888_integrated_services_router - Yes
Hardware cisco 891_integrated_services_router - Yes
Hardware cisco 892_integrated_services_router - Yes
Hardware cisco c881w_integrated_services_router - 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.