Vulnerability Name: | CVE-2021-1621 (CCN-209868) |
Assigned: | 2020-11-13 |
Published: | 2021-09-22 |
Updated: | 2023-05-22 |
Summary: | |
CVSS v3 Severity: | 7.4 High (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H) 6.4 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)Exploitability Metrics: | Attack Vector (AV): Adjacent Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None | Scope: | Scope (S): Changed
| Impact Metrics: | Confidentiality (C): None Integrity (I): None Availibility (A): High | 7.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H) 6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)Exploitability Metrics: | Attack Vector (AV): Adjacent Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None | Scope: | Scope (S): Changed
| Impact Metrics: | Confidentiality (C): None Integrity (I): None Availibility (A): High |
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CVSS v2 Severity: | 3.3 Low (CVSS v2 Vector: AV:A/AC:L/Au:N/C:N/I:N/A:P)Exploitability Metrics: | Access Vector (AV): Adjacent_Network Access Complexity (AC): Low Authentication (Au): None | Impact Metrics: | Confidentiality (C): None Integrity (I): None Availibility (A): Partial | 6.1 Medium (CCN CVSS v2 Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C)Exploitability Metrics: | Access Vector (AV): Adjacent_Network Access Complexity (AC): Low Athentication (Au): None
| Impact Metrics: | Confidentiality (C): None Integrity (I): None Availibility (A): Complete |
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Vulnerability Consequences: | Denial of Service |
References: | Source: MITRE Type: CNA CVE-2021-1621
Source: XF Type: UNKNOWN cisco-cve20211621-dos(209868)
Source: CCN Type: Cisco Security Advisory cisco-sa-quewedge-69BsHUBW Cisco IOS XE Software Interface Queue Wedge Denial of Service Vulnerability
Source: ykramarz@cisco.com Type: Patch, Vendor Advisory ykramarz@cisco.com
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Vulnerable Configuration: | Configuration CCN 1: cpe:/o:cisco:ios_xe_software:*:*:*:*:*:*:*:*
Denotes that component is vulnerable |
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