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.
CVE-2021-34757
MEDIUMNVD 4.95.5▲
EchelonGraph scoreMEDIUM confidence
Score 5.5 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 4.9; sources differ by 0.6.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
4.9
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 4.9Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.9
- EG Score
- 5.5(medium)
- EPSS
- 44.7%
- KEV
- Not listed
Published
October 6, 2021
Last Modified
November 21, 2024
References (2)
Frequently asked(5)
What is CVE-2021-34757?
CVE-2021-34757 is a medium vulnerability published on October 6, 2021. 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…
When was CVE-2021-34757 disclosed?
CVE-2021-34757 was first published in the National Vulnerability Database on October 6, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-34757 actively exploited?
CVE-2021-34757 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 44.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-34757?
CVE-2021-34757 has a CVSS v3 base score of 4.9 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 5.5.
How do I remediate CVE-2021-34757?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-34757, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2021-34757
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