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CVE-2023-20126

CRITICALCVSS 9.8/10EPSS 38.15%

Last modified

CVE-2023-20126 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability in the web-based management interface of Cisco SPA112 2-Port Phone Adapters could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to a missing authentication process within the firmware upgrade function. EPSS estimates a 38.15% chance of exploitation in the next 30 days.

Description

A vulnerability in the web-based management interface of Cisco SPA112 2-Port Phone Adapters could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to a missing authentication process within the firmware upgrade function. An attacker could exploit this vulnerability by upgrading an affected device to a crafted version of firmware. A successful exploit could allow the attacker to execute arbitrary code on the affected device with full privileges. Cisco has not released firmware updates to address this vulnerability.

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
38.15%

98.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
CiscoSpa112 Firmware1.4.1Sr9

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-20126?
A vulnerability in the web-based management interface of Cisco SPA112 2-Port Phone Adapters could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to a missing authentication process within the firmware upgrade function. An attacker could exploit this vulnerability by upgrading an affected device to a crafted version of firmware. A successful exploit could allow the attacker to execute arbitrary code on the affected device with full privileges. Cisco has not released firmware updates to address this vulnerability.
How severe is CVE-2023-20126?
CVE-2023-20126 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 38.15% probability of exploitation in the next 30 days.
How do I fix CVE-2023-20126?
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-2023-20126?

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

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Source: NVD / NIST