CVE-2021-1308

CVSS V2 Medium 6.1 CVSS V3 High 7.4
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).
Overview
  • CVE ID
  • CVE-2021-1308
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-04-08T04:15:11
  • Last Modified Date
  • 2022-08-05T17:37:39
Weakness Enumerations
CWE URL
CWE-401 http://cwe.mitre.org/data/definitions/401.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:cisco:rv132w_firmware:1.0.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv132w_firmware:1.0.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv132w_firmware:1.0.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:rv132w:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:rv134w_firmware:1.0.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv134w_firmware:1.0.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv134w_firmware:1.0.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:rv134w:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:rv160_firmware:1.0.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv160_firmware:1.0.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv160_firmware:1.0.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:rv160:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:rv160w_firmware:1.0.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv160w_firmware:1.0.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv160w_firmware:1.0.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:rv160w:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:rv260_firmware:1.0.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv260_firmware:1.0.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv260_firmware:1.0.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:rv260:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:rv260p_firmware:1.0.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv260p_firmware:1.0.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv260p_firmware:1.0.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:rv260p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:rv260w_firmware:1.0.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv260w_firmware:1.0.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv260w_firmware:1.0.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:rv260w:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:rv340_firmware:1.0.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv340_firmware:1.0.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv340_firmware:1.0.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:rv340:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:rv340w_firmware:1.0.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv340w_firmware:1.0.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv340w_firmware:1.0.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:rv340w:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:rv345_firmware:1.0.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv345_firmware:1.0.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv345_firmware:1.0.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:rv345:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:rv345p_firmware:1.0.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv345p_firmware:1.0.1.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:rv345p_firmware:1.0.1.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:rv345p:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.1
  • Severity
  • MEDIUM
  • Exploitability Score
  • 6.5
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.4
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.8
  • Impact Score
  • 4
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-multi-lldp-u7e4chCe Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-1308
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1308
History
Created Old Value New Value Data Type Notes
2022-05-10 07:15:43 Added to TrackCVE
2022-12-06 01:24:30 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-06 01:24:30 2021-04-08T04:15Z 2021-04-08T04:15:11 CVE Published Date updated
2022-12-06 01:24:30 2022-08-05T17:37:39 CVE Modified Date updated
2022-12-06 01:24:30 Analyzed Vulnerability Status updated