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TI-2021-13755 Aliases CVE-2021-34757GHSA-8q5v-c5jp-qp9p

Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities

Priority LOW 26CWE-540Published · Updated

Key facts

Attack vector
Physical
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-798.

Summary

Multiple vulnerabilities in Cisco Business 220 Series Smart Switches firmware could allow an attacker with Administrator privileges to access sensitive login credentials or reconfigure the passwords on the user account. For more information about these vulnerabilities, see the Details section of this advisory.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00624 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

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.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Small Business 220 Series Smart Plus Switchesall versions—No fix listedCNA
  • Cisco Small Business 220 Series Smart Plus Switches VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 32

CPEVersionsRoleVendor
cpe:2.3:o:cisco:business_220-8t-e-2g_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-8t-e-2g:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-8p-e-2g_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-8p-e-2g:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-8fp-e-2g_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-8fp-e-2g:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-16t-2g_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-16t-2g:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-16p-2g_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-16p-2g:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:o:cisco:business_220-8t-e-2g_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-8t-e-2g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-8p-e-2g_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-8p-e-2g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-8fp-e-2g_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-8fp-e-2g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-16t-2g_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-16t-2g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-16p-2g_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-16p-2g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Show 22 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:cisco:business_220-24t-4g_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-24t-4g:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-24p-4g_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-24p-4g:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-24fp-4g_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-24fp-4g:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-48t-4g_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-48t-4g:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-48p-4g_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-48p-4g:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-24t-4x_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-24t-4x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-24p-4x_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-24p-4x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-24fp-4x_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-24fp-4x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-48t-4x_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-48t-4x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-48p-4x_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-48p-4x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:business_220-48fp-4x_firmware:*:*:*:*:*:*:*:*up to 1.2.0.6VulnerableCisco
cpe:2.3:h:cisco:business_220-48fp-4x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:o:cisco:business_220-24t-4g_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-24t-4g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-24p-4g_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-24p-4g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-24fp-4g_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-24fp-4g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-48t-4g_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-48t-4g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-48p-4g_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-48p-4g:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-24t-4x_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-24t-4x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-24p-4x_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-24p-4x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-24fp-4x_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-24fp-4x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-48t-4x_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-48t-4x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-48p-4x_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-48p-4x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:business_220-48fp-4x_firmware:*:*:*:*:*:*:*:* Versions up to 1.2.0.6 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:business_220-48fp-4x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

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

  • Advisory ·

    Cisco Small Business 220 Series Smart Plus Switches — 20211006 Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2021-13743 Cisco Business 220 Series Smart Switches Static Key and Password VulnerabilitiesPriority LOW 24
    Show all 2 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-34757
  2. 2026-10-03 Alias added: GHSA-8q5v-c5jp-qp9p
  3. 2026-11-04 EPSS moved to the 50th–90th percentile

References

Advisory 1

  • TI-2021-13778 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities CVSS 3.1HIGH 8.8
  • TI-2021-13777 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities CVSS 3.1HIGH 8.8
  • TI-2021-13743 Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities CVSS 3.1MEDIUM 4.9
  • TI-2021-13776 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities CVSS 3.1MEDIUM 4.3
  • TI-2021-13775 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities CVSS 3.1MEDIUM 4.3
  • TI-2021-13774 Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabilities CVSS 3.1MEDIUM 4.3
See all 7 →

Sources

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