Cisco ONS 15454 FIN Packet denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Cisco ONS 15454 (version unknown). It has been classified as problematic. This affects an unknown function of the component FIN Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Cisco ONS 15454 controller cards with software 9.6 and earlier allow remote attackers to cause a denial of service (card reset) via a TCP FIN attack that triggers file-descriptor exhaustion and a failure to open a CAL pipe, aka Bug ID CSCug97348.

The weakness was released 04/07/2014 with Cisco as CSCug97348 as confirmed security notice (Website). It is possible to read the advisory at This vulnerability is uniquely identified as CVE-2014-2140 since 02/25/2014. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 73456 (Cisco ONS 15454 Controller Card DoS (CSCug97348)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO.

Upgrading eliminates this vulnerability. Applying the patch CSCug97348 is able to eliminate this problem. The bugfix is ready for download at 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 vulnerability is also documented in the databases at X-Force (92330), Tenable (73456), SecurityFocus (BID 66685†), Secunia (SA57650†) and Vulnerability Center (SBV-44193†).





CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
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Class: Denial of service
CWE: CWE-404

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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Nessus ID: 73456
Nessus Name: Cisco ONS 15454 Controller Card DoS (CSCug97348)
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Threat Intelligenceinfo

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Recommended: Upgrade
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Patch: CSCug97348


02/25/2014 🔍
04/07/2014 +41 days 🔍
04/07/2014 +0 days 🔍
04/07/2014 +0 days 🔍
04/07/2014 +0 days 🔍
04/09/2014 +2 days 🔍
04/09/2014 +0 days 🔍
04/10/2014 +1 days 🔍
04/12/2014 +2 days 🔍
04/22/2014 +10 days 🔍
06/16/2021 +2612 days 🔍



Advisory: CSCug97348
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-2140 (🔍)

X-Force: 92330 - Cisco ONS 15454 controller FIN attack denial of service, Medium Risk
SecurityFocus: 66685 - Cisco ONS 15454 System Software CVE-2014-2140 Denial of Service Vulnerability
Secunia: 57650 - Cisco ONS 15454 Series Controller Card File Descriptor Exhaustion Denial of Service Vulner, Less Critical
Vulnerability Center: 44193 - Cisco ONS 15454 Controller Cards Remote DoS via a TCP FIN Attack: CVE-2014-2140, Medium


Created: 04/09/2014 10:59 AM
Updated: 06/16/2021 03:48 PM
Changes: 04/09/2014 10:59 AM (78), 05/26/2017 03:32 AM (1), 06/16/2021 03:48 PM (3)
Complete: 🔍
Cache ID: 44:88A:40


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