CVE-2024-20436

State: Published
Severity: 8.6 High
Published: Sep 25, 2024
Updated: Sep 25, 2024
Reserved: Nov 8, 2023

Description

A vulnerability in the HTTP Server feature of Cisco IOS XE Software when the Telephony Service feature is enabled could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to a null pointer dereference when accessing specific URLs. An attacker could exploit this vulnerability by sending crafted HTTP traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, causing a DoS condition on the affected device.

Scores

CVSS	Score	Vector	Source
3.1	8.6 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H	cisco

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
Cisco IOS XE SoftwareCisco	3.9.1SAffected 3.9.2SAffected 3.9.0aSAffected 3.10.0SAffected 3.10.1SAffected 3.10.2SAffected 3.10.3SAffected 3.10.4SAffected 3.10.5SAffected 3.10.6SAffected 3.10.2tSAffected 3.10.7SAffected 3.10.8SAffected 3.10.8aSAffected 3.10.9SAffected 3.10.10SAffected 3.11.1SAffected 3.11.2SAffected 3.11.0SAffected 3.11.3SAffected 3.11.4SAffected 3.12.0SAffected 3.12.1SAffected 3.12.2SAffected 3.12.3SAffected and 176 more versions

Product

Versions

Cisco IOS XE SoftwareCisco

3.9.1SAffected
3.9.2SAffected
3.9.0aSAffected
3.10.0SAffected
3.10.1SAffected
3.10.2SAffected
3.10.3SAffected
3.10.4SAffected
3.10.5SAffected
3.10.6SAffected
3.10.2tSAffected
3.10.7SAffected
3.10.8SAffected
3.10.8aSAffected
3.10.9SAffected
3.10.10SAffected
3.11.1SAffected
3.11.2SAffected
3.11.0SAffected
3.11.3SAffected
3.11.4SAffected
3.12.0SAffected
3.12.1SAffected
3.12.2SAffected
3.12.3SAffected
and 176 more versions

References

cisco-sa-httpsrvr-dos-yOZThut

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