CVE Explorer
CVE-2026-20040
A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to execute arbitrary commands as root on the underlying operating system of an affected device.
This vulnerability is due to insufficient validation of user arguments that are passed to specific CLI commands. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the prompt. A successful exploit could allow the attacker to elevate privileges to root
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unknown","product":"Cisco IOS XR Software","vendor":"Cisco","versions":[{"status":"affected","version":"6.5.3"},{"status":"affected","version":"6.5.29"},{"status":"affected","version":"6.5.1"},{"status":"affected","version":"6.6.1"},{"status":"affected","version":"6.5.2"},{"status":"affected","version":"6.5.92"},{"status":"affected","version":"6.5.15"},{"status":"affected","version":"6.6.2"},{"status":"affected","version":"7.0.1"},{"status":"affected","version":"6.6.25"},{"status":"affected","version":"6.5.26"},{"status":"affected","version":"6.6.11"},{"status":"affected","ve…
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:57e4060135b983d1a1a68793a712c79e5a6de6b33293e1969c71970791f8f561 · sha256:78155504aa4fbba5… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:57e4060135b983d1a1a68793a712c79e5a6de6b33293e1969c71970791f8f561 · sha256:78155504aa4fbba5… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-78","description":"Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"cwe"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:57e4060135b983d1a1a68793a712c79e5a6de6b33293e1969c71970791f8f561 · sha256:78155504aa4fbba5… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"cisco-sa-iosxr-privesc-bF8D5U4W","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-privesc-bF8D5U4W"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:57e4060135b983d1a1a68793a712c79e5a6de6b33293e1969c71970791f8f561 · sha256:78155504aa4fbba5… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.