CVE-2020-3530— Cisco IOS XR Authenticated User Privilege Escalation Vulnerability
Quick assessment
Affected
Cisco Cisco IOS XR Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cisco IOS和Cisco IOS XR都是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XR软件中的CLI存在权限许可和访问控制问题漏洞，该漏洞源于网络系统或产品缺乏有效的权限许可和访问控制措施。
Possible ATT&CK Techniques 3 AI
T1068 · Exploitation for Privilege Escalation T1529 · System Shutdown/Reboot T1078 · Valid Accounts
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I. Basic Information for CVE-2020-3530
Vulnerability Information
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Vulnerability Title
Cisco IOS XR Authenticated User Privilege Escalation Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in task group assignment for a specific CLI command in Cisco IOS XR Software could allow an authenticated, local attacker to execute that command, even though administrative privileges should be required. The attacker must have valid credentials on the affected device. The vulnerability is due to incorrect mapping in the source code of task group assignments for a specific command. An attacker could exploit this vulnerability by issuing the command, which they should not be authorized to issue, on an affected device. A successful exploit could allow the attacker to invalidate the integrity of the disk and cause the device to restart. This vulnerability could allow a user with read permissions to issue a specific command that should require Administrator privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
权限、特权和访问控制
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco?IOS XR 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS和Cisco IOS XR都是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XR软件中的CLI存在权限许可和访问控制问题漏洞，该漏洞源于网络系统或产品缺乏有效的权限许可和访问控制措施。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco IOS XR Software | n/a | - |
|
II. Public POCs for CVE-2020-3530
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2020-3530 (1)
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-cli-privescl-sDVEmhqv vendor-advisory x_refsource_CISCO
Same Patch Batch · Cisco · 2020-09-04 · 15 CVEs total
| CVE-2020-3495 | 9.9 CRITICAL | Cisco Jabber for Windows Message Handling Arbitrary Code Execution Vulnerability |
| CVE-2020-3430 | 8.8 HIGH | Cisco Jabber for Windows Protocol Handler Command Injection Vulnerability |
| CVE-2020-3478 | 8.1 HIGH | Cisco Enterprise NFV Infrastructure Software File Overwrite Vulnerability |
| CVE-2020-3498 | 6.5 MEDIUM | Cisco Jabber for Windows Information Disclosure Vulnerability |
| CVE-2020-3545 | 6.0 MEDIUM | Cisco FXOS Software Buffer Overflow Vulnerability |
| CVE-2020-3537 | 5.7 MEDIUM | Cisco Jabber for Windows Universal Naming Convention Link Handling Vulnerability |
| CVE-2020-3542 | 5.3 MEDIUM | Cisco Webex Training Unauthorized Meeting Join Vulnerability |
| CVE-2020-3451 | 4.7 MEDIUM | Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vuln |
| CVE-2020-3453 | 4.7 MEDIUM | Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vuln |
| CVE-2020-3541 | 4.4 MEDIUM | Cisco Webex Meetings Client for Windows, Webex Meetings Desktop App, and Webex Teams Infor |
| CVE-2020-3547 | 4.3 MEDIUM | Cisco Email Security Appliance, Cisco Content Security Management Appliance, and Cisco Web |
| CVE-2020-3365 | 4.3 MEDIUM | Cisco Enterprise NFV Infrastructure Software Path Traversal Vulnerability |
| CVE-2020-3473 | Cisco IOS XR Software Authenticated User Privilege Escalation Vulnerability | |
| CVE-2020-3546 | Cisco Email Security Appliance Information Disclosure Vulnerability |
IV. Related Vulnerabilities
Same product: Cisco IOS XR Software
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CVE-2026-20278
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CVE-2026-20275
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CVE-2026-20274
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Same vendor: Cisco
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V. Comments for CVE-2020-3530
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