NULL pointer dereference in Cisco IOS XE - CVE-2024-20436
Published: September 26, 2024
Vulnerability identifier: #VU97725
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-20436
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the HTTP Server feature. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Affected software
Cisco IOS XE
How to mitigate CVE-2024-20436
Install update from vendor's website.
Cisco IOS XE - addressed in versions 17.6.7, 17.9.5, 17.12.1z, 17.12.1z1, 17.12.2, 17.13.1a