Cisco ASA up to input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability, which was classified as critical, was found in Cisco ASA up to (Firewall Software). This affects an unknown part. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.2(3) do not properly handle Online Certificate Status Protocol (OCSP) connection failures, which allows remote OCSP responders to cause a denial of service (TCP socket exhaustion) by rejecting connection attempts, aka Bug ID CSCsz36816.

The weakness was disclosed 01/07/2011 with Cisco (Website). It is possible to read the advisory at This vulnerability is uniquely identified as CVE-2010-4679. 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.

Upgrading to version eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (64605). The entries 55950, 55949, 55948 and 55946 are pretty similar.






  • commercial


  • end of life (version)

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Input validation
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ASA


01/06/2011 🔍
01/07/2011 +1 days 🔍
01/07/2011 +0 days 🔍
01/07/2011 +0 days 🔍
01/11/2011 +4 days 🔍
01/12/2011 +1 days 🔍
03/19/2015 +1527 days 🔍
10/11/2021 +2398 days 🔍



Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2010-4679 (🔍)
X-Force: 64605
Vulnerability Center: 29073 - Cisco ASA 5500 Series Devices Allows Remote Denial of Service by Rejecting Connection Attempts, High
SecurityFocus: 45767 - Cisco ASA 5500 Series 8.2(3) Multiple Remote Vulnerabilities
Secunia: 42931

See also: 🔍


Created: 03/19/2015 11:27 PM
Updated: 10/11/2021 07:48 AM
Changes: 03/19/2015 11:27 PM (50), 03/13/2017 09:46 AM (10), 10/11/2021 07:48 AM (5)
Complete: 🔍


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