CVE-2026-20110
published 2026-03-25CVE-2026-20110: A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected…
PriorityP426medium6.5CVSS 3.1
AVLACLPRLUINSCCNINAH
EPSS
0.09%
0.7th percentile
A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability exists because incorrect privileges are associated with the start maintenance command. An attacker could exploit this vulnerability by accessing the management CLI of the affected device as a low-privileged user and using the start maintenance command. A successful exploit could allow the attacker to put the device in maintenance mode, which shuts down interfaces, resulting in a denial of service (DoS) condition. In case of exploitation, a device administrator can connect to the CLI and use the stop maintenance command to restore operations.
Affected
231 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
| cisco | cisco_ios_xe_software | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
vendor_cisco6.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Cisco
Cisco IOS XE Software Denial of Service Vulnerability
vendor_cisco·2026-03-25·CVSS 6.5
CVE-2026-20110 [MEDIUM] CWE-266 Cisco IOS XE Software Denial of Service Vulnerability
Cisco IOS XE Software Denial of Service Vulnerability
A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability exists because incorrect privileges are associated with the start maintenance command. An attacker could exploit this vulnerability by accessing the management CLI of the affected device as a low-privileged user and using the start maintenance command. A successful exploit could allow the attacker to put the device in maintenance mode, which shuts down interfaces, resulting in a denial of service (DoS) condition. In case of exploitation, a device administrator can connect to the CLI and use the stop maintenance command to restore operations.
Cisco has r
Cisco
Cisco IOS XE Software Denial of Service Vulnerability
vendor_cisco·CVSS 3.1
CVE-2026-20110 Cisco IOS XE Software Denial of Service Vulnerability
CVE-2026-20110: Cisco IOS XE Software Denial of Service Vulnerability
A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because incorrect privileges are associated with the start maintenance command. An attacker could exploit this vulnerability by accessing the management CLI of the affected device as a low-privileged user and using the start maintenance command. A successful exploit could allow the attacker to put the device in maintenance mode, which shuts down interfaces, resulting in a denial of service (DoS) condition. In case of exploitation, a device administrator can connect to the CLI and use the stop maintenance command to restore operations
GHSA
GHSA-5hv6-p93j-6mjg: A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an af
ghsa_unreviewed·2026-03-25
CVE-2026-20110 [MEDIUM] CWE-266 GHSA-5hv6-p93j-6mjg: A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an af
A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability exists because incorrect privileges are associated with the start maintenance command. An attacker could exploit this vulnerability by accessing the management CLI of the affected device as a low-privileged user and using the start maintenance command. A successful exploit could allow the attacker to put the device in maintenance mode, which shuts down interfaces, resulting in a denial of service (DoS) condition. In case of exploitation, a device administrator can connect to the CLI and use the stop maintenance command to restore operations.
No detection rules found.
No public exploits indexed.
2026-03-25
Published