Executive Summary

Informations
Name CVE-2021-34793 First vendor Publication 2021-10-27
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Overall CVSS Score 8.6
Base Score 8.6 Environmental Score 8.6
impact SubScore 4 Temporal Score 8.6
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability in the TCP Normalizer of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software operating in transparent mode could allow an unauthenticated, remote attacker to poison MAC address tables, resulting in a denial of service (DoS) vulnerability. This vulnerability is due to incorrect handling of certain TCP segments when the affected device is operating in transparent mode. An attacker could exploit this vulnerability by sending a crafted TCP segment through an affected device. A successful exploit could allow the attacker to poison the MAC address tables in adjacent devices, resulting in network disruption.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34793

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 6
Application 170
Application 101
Hardware 23
Os 34
Os 773
Os 1

Sources (Detail)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...
Source Url

Alert History

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Date Informations
2024-11-28 13:58:07
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2024-11-06 02:28:08
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2024-10-30 02:25:44
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2024-08-02 13:26:23
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2024-08-02 01:25:55
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2024-04-27 02:40:57
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2024-02-02 02:26:34
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2024-02-01 12:24:11
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2023-11-09 21:32:37
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2023-11-07 21:33:33
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2023-09-19 13:15:49
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2023-09-05 13:20:51
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2023-09-05 01:23:42
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2023-09-02 13:19:25
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2023-09-02 01:24:03
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2023-08-17 09:27:42
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2023-08-17 00:28:24
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2023-08-16 21:28:19
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2023-08-16 13:09:53
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2023-08-13 02:06:56
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2023-08-12 13:25:32
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2023-08-12 01:23:17
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2023-08-11 13:17:47
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2023-08-11 01:24:04
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2023-08-07 02:06:03
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2023-08-06 13:15:45
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2023-08-06 01:23:02
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2023-08-05 02:06:07
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2023-08-04 13:16:08
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2023-08-04 01:23:23
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2023-07-15 02:08:07
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2023-07-14 13:16:11
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2023-07-14 01:23:11
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2023-03-31 02:08:56
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2023-03-29 13:01:48
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2023-03-29 02:18:20
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2023-03-28 12:23:23
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2022-11-30 01:58:31
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2022-11-23 01:59:27
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2022-11-22 01:59:45
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2022-11-18 13:03:19
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2022-10-12 01:59:24
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2022-10-11 13:07:58
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2022-10-11 01:22:51
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2021-12-29 01:48:26
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2021-10-29 09:23:31
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2021-10-28 00:22:53
  • First insertion