CVE-2024-20376

7.5 HIGH 0.9% exploit odds Fix listed

What it is

A vulnerability in the web-based management interface of Cisco IP Phone firmware could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a DoS condition. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to cause the affected device to reload.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 0.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2024-05-01 17:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 07:06 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.9% in the next 30 days (EPSS).
Severity: 7.5 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2024-05-01 17:15 UTC
Last modified: 2026-06-17 07:06 UTC
Exploit probability: 0.9% · EPSS, next 30 days
Weakness: CWE-787 · Out-of-bounds write
Record status: Analyzed

Affected

Cisco Video Phone 8875 Firmware < 2.3.1.0101
Cisco Ip Phone 6821 With Multiplatform Firmware ≤ 12.0.4
Cisco Ip Phone 6841 With Multiplatform Firmware ≤ 12.0.4
Cisco Ip Phone 6851 With Multiplatform Firmware ≤ 12.0.4
Cisco Ip Phone 6861 With Multiplatform Firmware ≤ 12.0.4
Cisco Ip Phone 6871 With Multiplatform Firmware ≤ 12.0.4
Cisco Ip Phone 7811 With Multiplatform Firmware ≤ 12.0.4
Cisco Ip Phone 7821 With Multiplatform Firmware ≤ 12.0.4

Attack profile CVSS 3.1 · 7.5

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: None
Availability: High

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2024-20376.md and follow it. Check whether this project is affected by CVE-2024-20376. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record