CVE-2026-20046
published 2026-03-11CVE-2026-20046: A vulnerability in task group assignment for a specific CLI command in Cisco IOS XR Software could allow an authenticated, local attacker to elevate privileges…
PriorityP351high8.8CVSS 3.1
AVLACLPRLUINSCCHIHAH
EPSS
0.14%
3.4th percentile
A vulnerability in task group assignment for a specific CLI command in Cisco IOS XR Software could allow an authenticated, local attacker to elevate privileges and gain full administrative control of an affected device.
This vulnerability is due to incorrect mapping of a command to task groups within the source code. An attacker with a low-privileged account could exploit this vulnerability by using the CLI command to bypass the task group–based checks. A successful exploit could allow the attacker to elevate privileges and perform actions on an affected device without authorization checks.
Affected
59 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
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| cisco | cisco_ios_xr_software | — | — |
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CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
vendor_cisco8.8HIGH
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GHSA
GHSA-jmg4-jjq9-vcrv: A vulnerability in task group assignment for a specific CLI command in Cisco IOS XR Software could allow an authenticated, local attacker to elevate p
ghsa_unreviewed·2026-03-11
CVE-2026-20046 [HIGH] GHSA-jmg4-jjq9-vcrv: A vulnerability in task group assignment for a specific CLI command in Cisco IOS XR Software could allow an authenticated, local attacker to elevate p
A vulnerability in task group assignment for a specific CLI command in Cisco IOS XR Software could allow an authenticated, local attacker to elevate privileges and gain full administrative control of an affected device.
This vulnerability is due to incorrect mapping of a command to task groups within the source code. An attacker with a low-privileged account could exploit this vulnerability by using the CLI command to bypass the task group–based checks. A successful exploit could allow the attacker to elevate privileges and perform actions on an affected device without authorization checks.
Cisco
Cisco IOS XR Software CLI Privilege Escalation Vulnerabilities
vendor_cisco·2026-03-11·CVSS 8.8
CVE-2026-20040 [HIGH] CWE-264 Cisco IOS XR Software CLI Privilege Escalation Vulnerabilities
Cisco IOS XR Software CLI Privilege Escalation Vulnerabilities
Multiple vulnerabilities in Cisco IOS XR Software could allow an authenticated, local attacker to execute commands as root on an underlying operating system or gain full administrative control of an affected device.
For more information about these vulnerabilities, see the Details section of this advisory.
Cisco has released software updates that address these vulnerabilities. A workaround is available for one of the vulnerabilities.
This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-privesc-bF8D5U4W
This advisory is part of the March 2026 release of the Cisco IOS XR Software Security Advisory Bundled Publication. For a complete list of
Cisco
Cisco IOS XR Software CLI Privilege Escalation Vulnerabilities
vendor_cisco·CVSS 3.1
CVE-2026-20046 Cisco IOS XR Software CLI Privilege Escalation Vulnerabilities
CVE-2026-20046: Cisco IOS XR Software CLI Privilege Escalation Vulnerabilities
Multiple vulnerabilities in Cisco IOS XR Software could allow an authenticated, local attacker to execute commands as root on an underlying operating system or gain full administrative control of an affected device. For more information about these vulnerabilities, see the
CVSS: 3.1
CWE: CWE-264, CWE-78, CWE-264, CWE-78
Bug IDs: CSCwp27221, CSCwp30135, CSCwp30142, CSCwp27221, CSCwp30135
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-03-11
Published