What’s Vulnerable › Vulnerabilities
CVE-2024-20436
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-09-25 · updated 2026-06-17
- Weakness: CWE-476
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.
Affected products
- Cisco IOS XE: 3.9.0as, 3.9.1s, 3.9.2s, 3.10.0s, 3.10.1s, 3.10.2s (+195)
References
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