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CVE-2024-20454

CRITICALCVSS 9.8/10EPSS 6.60%

Last modified

CVE-2024-20454 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Multiple vulnerabilities in the web-based management interface of Cisco Small Business SPA300 Series IP Phones and Cisco Small Business SPA500 Series IP Phones could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system with root privileges. These vulnerabilities exist because incoming HTTP packets are not properly checked for errors, which could result in a buffer overflow. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. EPSS estimates a 6.60% chance of exploitation in the next 30 days.

Description

Multiple vulnerabilities in the web-based management interface of Cisco Small Business SPA300 Series IP Phones and Cisco Small Business SPA500 Series IP Phones could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system with root privileges. These vulnerabilities exist because incoming HTTP packets are not properly checked for errors, which could result in a buffer overflow. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to overflow an internal buffer and execute arbitrary commands at the root privilege level.

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
6.60%

93.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoSpa 301 FirmwareAll versions
CiscoSpa 303 FirmwareAll versions
CiscoSpa 501g FirmwareAll versions
CiscoSpa 502g FirmwareAll versions
CiscoSpa 504g FirmwareAll versions
CiscoSpa 508g FirmwareAll versions
CiscoSpa 509g FirmwareAll versions
CiscoSpa 512g FirmwareAll versions
CiscoSpa 514g FirmwareAll versions
CiscoSpa 525g FirmwareAll versions
CiscoSpa 525g2 FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2024-20454?
Multiple vulnerabilities in the web-based management interface of Cisco Small Business SPA300 Series IP Phones and Cisco Small Business SPA500 Series IP Phones could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system with root privileges. These vulnerabilities exist because incoming HTTP packets are not properly checked for errors, which could result in a buffer overflow. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to overflow an internal buffer and execute arbitrary commands at the root privilege level.
How severe is CVE-2024-20454?
CVE-2024-20454 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 6.60% probability of exploitation in the next 30 days.
How do I fix CVE-2024-20454?
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-2024-20454?

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

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Source: NVD / NIST