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CVE-2021-1136
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
Multiple vulnerabilities in Cisco Network Convergence System (NCS) 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for the Cisco 8000 Series Routers could allow an authenticated, local attacker to execute unsigned code during the boot process on an affected device. For more information about these vulnerabilities, see the Details section of this advisory..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 4.6/10
- Exploit Score
- 3.9/10
- Access Vector
- Local
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 6.4/10
- Confidentiality Impact
- Partial
- Availability Impact
- Partial
- Integrity Impact
- Partial
CVSSv3.1 Score
- Severity
- Medium
- Base Score
- 6.7/10
- Exploit Score
- 0.8/10
- Access Vector
- Local
- Access Complexity
- Low
- Privileges Required
- High
- Impact Score
- 5.9/10
- Confidentiality Impact
- High
- Availability Impact
- High
- Integrity Impact
- High
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* |
Yes
|
- | 7.0.12 | |
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* |
Yes
|
7.1.0 | 7.2.1 | |
cpe:2.3:h:cisco:8201:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:h:cisco:8202:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:h:cisco:8808:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:h:cisco:8812:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:h:cisco:8818:-:*:*:*:*:*:*:* |
No
|
- | ||
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* |
Yes
|
- | 7.2.1 | |
cpe:2.3:h:cisco:ncs_540:-:*:*:*:*:*:*:* |
No
|
- |