CVE-2021-1543
Multiple vulnerabilities in the web-based management interface of Cisco Small Business 220 Series Smart Switches could allow an attacker to do the following: Hijack a user session Execute arbitrary commands as a root user on the underlying operating…
Does this matter?
Lower severity and a low EPSS score (9.32%). Track it; it rarely justifies an emergency change on its own.
Description
Multiple vulnerabilities in the web-based management interface of Cisco Small Business 220 Series Smart Switches could allow an attacker to do the following: Hijack a user session Execute arbitrary commands as a root user on the underlying operating system Conduct a cross-site scripting (XSS) attack Conduct an HTML injection attack For more information about these vulnerabilities, see the Details section of this advisory.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 9.32% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287, CWE-79
- Affected
- cisco/sf220-24 firmware · cisco/sf220-24p firmware · cisco/sf220-48 firmware · cisco/sf220-48p firmware · cisco/sg220-26 firmware · cisco/sg220-26p firmware · cisco/sg220-28mp firmware · cisco/sg220-50 firmware · cisco/sg220-50p firmware
- Source
- psirt@cisco.com
EPSS 9.3% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.