How severe is CVE-2021-34744?

CVE-2021-34744 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-34744 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34744?

CVE-2021-34744 primarily affects Cisco Business 220-8t-e-2g Firmware. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-34744?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-34744 published?

CVE-2021-34744 was published on 2021-10-06 and last updated on 2026-06-17.

CVE-2021-34744

CVE-2021-34744 is a medium-severity vulnerability in Cisco Business 220-8t-e-2g Firmware with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v2: 4.0
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Cisco Business 220-8t-e-2g Firmware
Published: 2021-10-06
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2021-34744?: 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.
How severe is CVE-2021-34744?: CVE-2021-34744 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-34744 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34744?: CVE-2021-34744 primarily affects Cisco Business 220-8t-e-2g Firmware. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-34744?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-34744 published?: CVE-2021-34744 was published on 2021-10-06 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-hardcoded-cred-MJCEXvX

Affected products (16)

cpe:2.3:o:cisco:business_220-8t-e-2g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-8p-e-2g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-8fp-e-2g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-16t-2g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-16p-2g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-24t-4g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-24p-4g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-24fp-4g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-48t-4g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-48p-4g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-24t-4x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-24p-4x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-24fp-4x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-48t-4x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-48p-4x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_220-48fp-4x_firmware:*:*:*:*:*:*:*:*

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