Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2021-1288

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
04/02/2021
Last modified:
07/11/2023

Description

Multiple vulnerabilities in the ingress packet processing function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* 5.0.0 (including) 5.2.6 (excluding)
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* 5.3.0 (including) 5.3.4 (excluding)
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* 6.0.0 (including) 6.0.2 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools