Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-1308

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
08/04/2021
Last modified:
07/11/2023

Description

Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

Impact

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

Base Score: 7.40 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

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

Base Score 3.x
7.40
Severity 3.x
HIGH
Vector 2.0
AV:A/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C

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

Base Score 2.0
6.10
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:rv132w_firmware:1.0.0.14:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv132w_firmware:1.0.1.14:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv132w_firmware:1.0.1.20:*:*:*:*:*:*:*
cpe:2.3:h:cisco:rv132w:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv134w_firmware:1.0.0.14:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv134w_firmware:1.0.1.14:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv134w_firmware:1.0.1.20:*:*:*:*:*:*:*
cpe:2.3:h:cisco:rv134w:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv160_firmware:1.0.0.14:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv160_firmware:1.0.1.14:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv160_firmware:1.0.1.20:*:*:*:*:*:*:*
cpe:2.3:h:cisco:rv160:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv160w_firmware:1.0.0.14:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv160w_firmware:1.0.1.14:*:*:*:*:*:*:*
cpe:2.3:o:cisco:rv160w_firmware:1.0.1.20:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools