CVE-2023-20078

Name: CVE-2023-20078
Creator: NVD / NIST
Published: 2023-03-03T16:15:10.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 10.35%

Last modified Jun 17, 2026

CVE-2023-20078 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory.. EPSS estimates a 10.35% chance of exploitation in the next 30 days.

Description

Multiple vulnerabilities in the web-based management interface of certain Cisco IP Phones could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

10.35%

95.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Ip Phone 6871 Firmware	< 11.3.7sr1
Cisco	Ip Phone 6861 Firmware	< 11.3.7sr1
Cisco	Ip Phone 6851 Firmware	< 11.3.7sr1
Cisco	Ip Phone 6841 Firmware	< 11.3.7sr1
Cisco	Ip Phone 6825 Firmware	< 11.3.7sr1
Cisco	Ip Phone 7861 Firmware	< 11.3.7sr1
Cisco	Ip Phone 7841 Firmware	< 11.3.7sr1
Cisco	Ip Phone 7832 Firmware	< 11.3.7sr1
Cisco	Ip Phone 7821 Firmware	< 11.3.7sr1
Cisco	Ip Phone 7811 Firmware	< 11.3.7sr1
Cisco	Ip Phone 8865 Firmware	< 11.3.7sr1
Cisco	Ip Phone 8861 Firmware	< 11.3.7sr1
Cisco	Ip Phone 8851 Firmware	< 11.3.7sr1
Cisco	Ip Phone 8845 Firmware	< 11.3.7sr1
Cisco	Ip Phone 8841 Firmware	< 11.3.7sr1
Cisco	Ip Phone 8832 Firmware	< 11.3.7sr1
Cisco	Ip Phone 8811 Firmware	< 11.3.7sr1

References

Timeline

Published: Mar 3, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-20078?

How severe is CVE-2023-20078?

CVE-2023-20078 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 10.35% probability of exploitation in the next 30 days.

How do I fix CVE-2023-20078?

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-2023-20078?

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

Scan your code now

Source: NVD / NIST