Unauthorized Remote Attack on IP Phones Could Cause Device Reload
CVE-2024-20451

7.5HIGH

Key Information:

Vendor

Cisco
Status
Cisco Small Business Ip Phones
Vendor
CVE Published:
7 August 2024

What is CVE-2024-20451?

Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business SPA300 Series and SPA500 Series IP Phones, allowing an unauthenticated remote attacker to exploit weaknesses in error handling of HTTP packets. By sending specially crafted HTTP packets to the remote interface of the devices, an attacker could initiate unexpected reloads, leading to a denial of service condition. This vulnerability poses a significant risk as it can disrupt communications for users relying on these devices.

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Affected Version(s)

Cisco Small Business IP Phones 7.6.0

Cisco Small Business IP Phones 7.6.2

Cisco Small Business IP Phones 7.6.2SR3

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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