cbcvebase.
CVE-2023-20159
published 2023-05-18

CVE-2023-20159: Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to…

PriorityP274critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
10.28%
95.2th percentile
Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These vulnerabilities are due to improper validation of requests that are sent to the web interface. For more information about these vulnerabilities, see the Details section of this advisory.

Affected

2 ranges
VendorProductVersion rangeFixed in
ciscocisco_small_business_smart_and_managed_switches
ciscosmall_business_series_switches

Detection & IOCsextracted from sources · hover to see the quote

  • Vulnerability is triggered via improper validation of requests sent to the web-based user interface of Cisco Small Business Series Switches; monitor for anomalous or malformed HTTP requests to the switch web UI
  • Attack is unauthenticated and remote — no credentials required; any external HTTP/HTTPS traffic to the management web UI from untrusted sources should be treated as suspicious
  • Track Cisco Bug IDs CSCwe27386, CSCwe27393, CSCwe27394 for patch and indicator updates related to this vulnerability cluster
  • ·CVSS score is 3.1 base — verify the exact score from the full advisory as the provided sources only state the CVSS version, not the numeric score; scoring affects prioritization

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vendor_cisco9.8CRITICAL
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