Executive Summary
Informations | |||
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Name | CVE-2021-1620 | First vendor Publication | 2021-09-23 |
Vendor | Cve | Last vendor Modification | 2024-11-21 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H | |||
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Overall CVSS Score | 7.7 | ||
Base Score | 7.7 | Environmental Score | 7.7 |
impact SubScore | 4 | Temporal Score | 7.7 |
Exploitabality Sub Score | 3.1 | ||
Attack Vector | Network | Attack Complexity | Low |
Privileges Required | Low | 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:M/Au:S/C:N/I:N/A:P) | |||
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Cvss Base Score | 3.5 | Attack Range | Network |
Cvss Impact Score | 2.9 | Attack Complexity | Medium |
Cvss Expoit Score | 6.8 | Authentication | Requires single instance |
Calculate full CVSS 2.0 Vectors scores |
Detail
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) support for the AutoReconnect feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to exhaust the free IP addresses from the assigned local pool. This vulnerability occurs because the code does not release the allocated IP address under certain failure conditions. An attacker could exploit this vulnerability by trying to connect to the device with a non-AnyConnect client. A successful exploit could allow the attacker to exhaust the IP addresses from the assigned local pool, which prevents users from logging in and leads to a denial of service (DoS) condition. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1620 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-772 | Missing Release of Resource after Effective Lifetime |
CPE : Common Platform Enumeration
Sources (Detail)
Source | Url |
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Alert History
Date | Informations |
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2024-11-28 13:50:23 |
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2023-11-07 21:33:57 |
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2023-05-23 00:27:39 |
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2021-10-14 00:23:02 |
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2021-09-24 01:45:41 |
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2021-09-24 01:43:04 |
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2021-09-23 17:22:52 |
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2021-09-23 09:22:55 |
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