A vulnerability in the HTTP Server feature of Cisco IOS Software and Cisco IOS XE Software Release 3E could allow an authenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition.
This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending malformed HTTP requests to an affected device. A successful exploit could allow the attacker to cause a watchdog timer to expire and the device to reload, resulting in a DoS condition. To exploit this vulnerability, the attacker must have a valid user account.
Metrics
Affected Vendors & Products
References
History
Wed, 25 Mar 2026 22:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Authenticated HTTP Server Exploit Causing Device Reload and Denial of Service |
Wed, 25 Mar 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 25 Mar 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A vulnerability in the HTTP Server feature of Cisco IOS Software and Cisco IOS XE Software Release 3E could allow an authenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending malformed HTTP requests to an affected device. A successful exploit could allow the attacker to cause a watchdog timer to expire and the device to reload, resulting in a DoS condition. To exploit this vulnerability, the attacker must have a valid user account. | |
| Weaknesses | CWE-228 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2026-03-25T17:52:07.963Z
Reserved: 2025-10-08T11:59:15.378Z
Link: CVE-2026-20125
Updated: 2026-03-25T17:52:04.380Z
Status : Received
Published: 2026-03-25T16:16:16.750
Modified: 2026-03-25T16:16:16.750
Link: CVE-2026-20125
No data.
OpenCVE Enrichment
Updated: 2026-03-25T21:30:55Z