Cisco IOS 3.5e SNMP Service SNMP Polling Request input validation

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability classified as problematic was found in Cisco IOS 3.5e (Router Operating System). This vulnerability affects an unknown function of the component SNMP Service. The manipulation as part of a SNMP Polling Request leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

The SNMP module in Cisco IOS XE 3.5E allows remote authenticated users to cause a denial of service (device reload) by polling frequently, aka Bug ID CSCug65204.

The weakness was presented 05/16/2014 with Cisco as CSCug65204 as confirmed security notice (Website). The advisory is available at This vulnerability was named CVE-2014-3269 since 05/07/2014. The exploitation appears to be easy. The attack can be initiated remotely. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 76969 (Cisco IOS XE SNMP DoS (CSCug65204)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Upgrading to version 15.1(1)XO0.21, 15.1(2)SG3.0.1, 15.1(2)SG3, 15.1(1.0.33)XO1 or 15.1(1)XO1 eliminates this vulnerability. The upgrade is hosted for download at It is possible to mitigate the problem by applying the configuration setting no snmp-server. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. The security notice contains the following remark:

An SNMP view can be used to restrict polling of the MIB: snmp-server view restrict iso included / snmp-server view restrict ciscoProcessMIB excluded / snmp-server community mycommunity view restrict RO

The vulnerability is also documented in the databases at X-Force (93221) and Tenable (76969). Additional details are provided at See VDB-13255 for similar entry.








  • end of life (old version)

CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.5
VulDB Temp Score: 5.7
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Class: Input validation

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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Nessus ID: 76969
Nessus Name: Cisco IOS XE SNMP DoS (CSCug65204)
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Threat Intelligenceinfo

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Recommended: Upgrade
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Upgrade: IOS 15.1(1)XO0.21/15.1(2)SG3.0.1/15.1(2)SG3/15.1(1.0.33)XO1/15.1(1)XO1
Config: no snmp-server


05/07/2014 🔍
05/16/2014 +8 days 🔍
05/16/2014 +0 days 🔍
05/16/2014 +0 days 🔍
05/16/2014 +0 days 🔍
05/20/2014 +4 days 🔍
05/20/2014 +0 days 🔍
05/20/2014 +0 days 🔍
08/01/2014 +73 days 🔍
06/19/2021 +2514 days 🔍



Advisory: CSCug65204
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-3269 (🔍)
X-Force: 93221 - Cisco IOS XE SNMP module denial of service, Medium Risk
Vulnerability Center: 44567 - Cisco IOS XE Remote DoS via Continuous SNMP Polling Requests, Medium
SecurityFocus: 67459

Misc.: 🔍
See also: 🔍


Created: 05/20/2014 12:04 PM
Updated: 06/19/2021 07:26 PM
Changes: 05/20/2014 12:04 PM (78), 05/28/2017 03:22 AM (2), 06/19/2021 07:18 PM (4), 06/19/2021 07:26 PM (1)
Complete: 🔍
Cache ID: 3:A93:40


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