What is CVE-2023-20159?

CVE-2023-20159 is a high-severity vulnerability in Cisco Business 250-16p-2g, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.6/10. Published 2023-05-18.

How severe is CVE-2023-20159?

High severity. CVSS v3 base score is 8.6 out of 10.

Is CVE-2023-20159 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Cisco Business 250-16p-2g

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 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.

Vulnerability class: Buffer Overflow

EPSS: 0.103 (95.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

netlas-io/netlas-dorks

References

psirt@cisco.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2023-20159?: CVE-2023-20159 is a high-severity vulnerability in Cisco Business 250-16p-2g, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.6/10. Published 2023-05-18.
How severe is CVE-2023-20159?: High severity. CVSS v3 base score is 8.6 out of 10.
Is CVE-2023-20159 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.