How severe is CVE-2023-20181?

CVE-2023-20181 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-20181 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-20181?

CVE-2023-20181 primarily affects Cisco Spa500ds Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-20181?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-20181 published?

CVE-2023-20181 was published on 2023-08-03 and last updated on 2026-06-17.

CVE-2023-20181

CVE-2023-20181 is a medium-severity vulnerability in Cisco Spa500ds Firmware with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Cisco Spa500ds Firmware
Published: 2023-08-03
Last modified: 2026-06-17

Description

A vulnerability in the web-based management interface of Cisco Small Business SPA500 Series IP Phones could allow an unauthenticated, remote attacker to conduct XSS attacks. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Frequently asked questions

What is CVE-2023-20181?: A vulnerability in the web-based management interface of Cisco Small Business SPA500 Series IP Phones could allow an unauthenticated, remote attacker to conduct XSS attacks. This vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected software. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
How severe is CVE-2023-20181?: CVE-2023-20181 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-20181 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-20181?: CVE-2023-20181 primarily affects Cisco Spa500ds Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-20181?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-20181 published?: CVE-2023-20181 was published on 2023-08-03 and last updated on 2026-06-17.

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-spa-web-multi-7kvPmu2F

Affected products (12)

cpe:2.3:o:cisco:spa500ds_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa501g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa502g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa504g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa508g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa509g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa512g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa514g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa525_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa525g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:spa525g2_firmware:-:*:*:*:*:*:*:*

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