Cyber Resilience

CVE-2024-20376

High

Published: 01 May 2024

Published
01 May 2024
Modified
05 January 2026
KEV Added
Patch
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0062 70.4th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-20376 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Cisco Video Phone 8875 Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 29.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.…

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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.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

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
cisco
ip phone 7832 with multiplatform firmware
≤ 12.0.4
cisco
ip phone 7841 with multiplatform firmware
≤ 12.0.4
+8 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References