Answer in brief
CVE-2026-20046 records a High severity (CVSS 8.8) vulnerability in Cisco IOS XR Software CLI Privilege Escalation Vulnerability. The current sources do not mark it as known exploited. The current feed maps Cisco/Cisco IOS XR Software (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Cisco/Cisco IOS XR Software (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Cisco/Cisco IOS XR Softwaregeneric | 6.6.1 || 6.5.3 || 7.0.1 || 6.5.1 || 6.5.2 || 6.6.2 || 6.6.25 || 7.1.1 || 7.0.90 || 6.6.3 || 7.0.2 || 7.1.2 || 7.2.1 || 6.6.4 || 7.3.1 || 7.4.1 || 7.2.2 || 7.3.2 || 7.5.1 || 7.6.1 || 7.5.2 || 7.3.4 || 7.3.3 || 7.4.2 || 7.7.1 || 7.6.2 || 7.8.1 || 7.7.2 || 7.9.1 || 7.8.2 || 7.5.4 || 7.8.22 || 7.10.1 || 7.7.21 || 7.9.2 || 7.5.5 || 7.11.1 || 7.10.2 || 7.3.6 || 24.1.1 || 7.11.2 || 24.2.1 || 24.1.2 || 24.3.1 || 24.4.1 || 24.2.2 || 7.11.21 || 24.2.20 || 24.3.2 || 24.4.2 || 25.1.1 || 24.3.20 || 25.2.1 || 25.1.2 || 24.3.30 || 24.2.21 || 25.1.30 | Not reported |
Published upstream
Mar 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 1, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-20046 records a High severity (CVSS 8.8) vulnerability in Cisco IOS XR Software CLI Privilege Escalation Vulnerability. The current sources do not mark it as known exploited. The current feed maps Cisco/Cisco IOS XR Software (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Cisco/Cisco IOS XR Software (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Cisco/Cisco IOS XR Softwaregeneric | 6.6.1 || 6.5.3 || 7.0.1 || 6.5.1 || 6.5.2 || 6.6.2 || 6.6.25 || 7.1.1 || 7.0.90 || 6.6.3 || 7.0.2 || 7.1.2 || 7.2.1 || 6.6.4 || 7.3.1 || 7.4.1 || 7.2.2 || 7.3.2 || 7.5.1 || 7.6.1 || 7.5.2 || 7.3.4 || 7.3.3 || 7.4.2 || 7.7.1 || 7.6.2 || 7.8.1 || 7.7.2 || 7.9.1 || 7.8.2 || 7.5.4 || 7.8.22 || 7.10.1 || 7.7.21 || 7.9.2 || 7.5.5 || 7.11.1 || 7.10.2 || 7.3.6 || 24.1.1 || 7.11.2 || 24.2.1 || 24.1.2 || 24.3.1 || 24.4.1 || 24.2.2 || 7.11.21 || 24.2.20 || 24.3.2 || 24.4.2 || 25.1.1 || 24.3.20 || 25.2.1 || 25.1.2 || 24.3.30 || 24.2.21 || 25.1.30 | Not reported |
Published upstream
Mar 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 1, 2026
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.
Quoted source text, attributed separately from HOL analysis.