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CVE-2021-1542

HIGHCVSS 8.1/10EPSS 1.39%

Last modified

CVE-2021-1542 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 1.39% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.39%

68.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoSf220-24 Firmware< 1.2.0.6
CiscoSf220-24p Firmware< 1.2.0.6
CiscoSf220-48 Firmware< 1.2.0.6
CiscoSf220-48p Firmware< 1.2.0.6
CiscoSg220-26 Firmware< 1.2.0.6
CiscoSg220-26p Firmware< 1.2.0.6
CiscoSg220-28mp Firmware< 1.2.0.6
CiscoSg220-50 Firmware< 1.2.0.6
CiscoSg220-50p Firmware< 1.2.0.6

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-1542?
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.
How severe is CVE-2021-1542?
CVE-2021-1542 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 1.39% probability of exploitation in the next 30 days.
How do I fix CVE-2021-1542?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-1542?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST