Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities

CISA ADP · SSVC 2.0.3

Exploitation

None

Automatable

No

Technical impact

Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

• Cisco Small Business RV Series Router Firmware VendorCisco Affected all versions Fixed in — No fix listed CNA

No fixed version listed by the sources yet.

Records fixed by the same vendor advisory or release, as the CNA lists them.

• Advisory · 2021-04-08

  Cisco Small Business RV Series Router Firmware — 20210407 Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities

  3 records · Highest priority Priority LOW · 3 LOW

  Other records, highest priority first

  • TI-2021-01035 Cisco Small Business RV Series Routers Link Layer Discovery Protocol VulnerabilitiesPriority LOW 33
  • TI-2021-00978 Cisco Small Business RV Series Routers Link Layer Discovery Protocol VulnerabilitiesPriority LOW 33
  Show all 3 records → Advisory →

1. 2026-10-02 Threatist record created from CVE-2021-1309
2. 2026-10-03 Alias added: GHSA-mqj7-w9r3-q3p2

• TI-2018-00100 Improper input validation in Cisco RV132W and RV134W KEVCVSS 3.1CRITICAL 9.8
• TI-2018-00101 Information disclosure in Cisco RV132W and RV134W Wireless VPN Routers CVSS 3.1CRITICAL 9.8
• TI-2021-01014 Stack-based buffer overflow in Cisco Small Business RV Series Router Firmware CVSS 3.1HIGH 7.2
• TI-2021-01035 Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities CVSS 3.1HIGH 7.4
• TI-2021-00978 Cisco Small Business RV Series Routers Link Layer Discovery Protocol Vulnerabilities CVSS 3.1HIGH 7.4

• CVE-2021-1309 · CVE Program
• CVE-2021-1309 · NVD
• FIRST EPSS
• GHSA-mqj7-w9r3-q3p2 · GitHub Advisory Database · CC BY 4.0

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences