CVE-2020-3530 json
Cisco IOS XR Authenticated User Privilege Escalation Vulnerability
published 2020-09-04 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-24801
- cvss
- 8.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- cisco ios_xr 7.1.2
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.4 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H |
| NVD | 3.1 | 8.4 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H |
| NVD | 2.0 | 5.6 | AV:L/AC:L/Au:N/C:N/I:P/A:C |
Affected products
- Cisco Cisco IOS XR Software
Classification
- Weakness
- Technology feeds
References
Sources
- CVE List CVE-2020-3530
- NVD CVE-2020-3530
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