How severe is CVE-2023-20160?

CVE-2023-20160 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-20160 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-20160?

CVE-2023-20160 primarily affects Cisco Business 250-16p-2g Firmware. In total, 229 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-20160?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-20160 published?

CVE-2023-20160 was published on 2023-05-18 and last updated on 2026-06-17.

CVE-2023-20160

CVE-2023-20160 is a high-severity vulnerability in Cisco Business 250-16p-2g Firmware with a CVSS 3.x base score of 8.6. Its EPSS exploit-prediction score of 10% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-120.

Key facts

Severity: High (CVSS 3.x base score 8.6)
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Cisco Business 250-16p-2g Firmware
Published: 2023-05-18
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-20160?: 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.
How severe is CVE-2023-20160?: CVE-2023-20160 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-20160 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-20160?: CVE-2023-20160 primarily affects Cisco Business 250-16p-2g Firmware. In total, 229 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-20160?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-20160 published?: CVE-2023-20160 was published on 2023-05-18 and last updated on 2026-06-17.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sg-web-multi-S9g4Nkgv

Affected products (229)

cpe:2.3:o:cisco:business_250-16p-2g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-16t-2g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-24fp-4g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-24fp-4x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-24p-4g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-24p-4x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-24pp-4g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-24t-4g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-24t-4x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-48p-4g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-48p-4x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-48pp-4g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-48t-4g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-48t-4x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-8fp-e-2g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-8p-e-2g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-8pp-d_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-8pp-e-2g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-8t-d_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_250-8t-e-2g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-12np-4x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-12xs_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-12xt_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-16fp-2g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-16p-2g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-16p-e-2g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-16t-2g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-16t-e-2g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-16xts_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-24fp-4g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-24fp-4x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-24mgp-4x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-24ngp-4x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-24p-4g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-24p-4x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-24s-4g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-24t-4g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-24t-4x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-24xs_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:business_350-24xt_firmware:-:*:*:*:*:*:*:*

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