CVE detail
CVE-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 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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 16.1 · diversity 16.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
4 source links · newest first
- Cisco IOS XE Software Denial of Service VulnerabilityCisco Security Advisories
26 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication . Security Impact Rating: Medium CVE: CVE-2026-20110
vendorsec.cloudapps.cisco.comApr 2, 2026, 7:43 PM The high- and medium-severity flaws could lead to denial-of-service, secure boot bypass, information disclosure, and privilege escalation.
newswww.securityweek.comMar 26, 2026, 12:32 PMCisco’s widely deployed Catalyst 9300 Series enterprise switches have four security vulnerabilities, two of which could be chained to cause a denial-of-service outage, infrastructure security company Opswat has revealed. The two most operationally significant are CVE-2026-20114 and CVE-2026-20110, which the researchers found could be chained to make possible a dangerous privilege escalation. Opswat’s Unit 515 […]
newswww.csoonline.comMar 25, 2026, 6:28 PM- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-mntc-dos-LZweQcyqsec.cloudapps.cisco.com
No excerpt available.
Vendor Advisorysec.cloudapps.cisco.comMar 25, 2026, 4:16 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
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