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CVE-2021-1439
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of incoming mDNS traffic. An attacker could exploit this vulnerability by sending a crafted mDNS packet to an affected device through a wireless network that is configured in FlexConnect local switching mode or through a wired network on a configured mDNS VLAN. A successful exploit could allow the attacker to cause the access point (AP) to reboot, resulting in a DoS condition..
CVSSv2.0 Score
- Severity
- Low
- Base Score
- 3.3/10
- Exploit Score
- 6.5/10
- Access Vector
- Adjacent_network
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 2.9/10
- Confidentiality Impact
- None
- Availability Impact
- Partial
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- High
- Base Score
- 7.4/10
- Exploit Score
- 2.8/10
- Access Vector
- Adjacent_network
- Access Complexity
- Low
- Privileges Required
- None
- Impact Score
- 4/10
- Confidentiality Impact
- None
- Availability Impact
- High
- Integrity Impact
- None
- Scope
- Changed
- User Interaction
- None
Products Affected
| CPE | Affected | Vulnerable | Excluding | Edit |
|---|---|---|---|---|
| cpe:2.3:a:cisco:aironet_access_point_software:-:*:*:*:*:*:*: |
Yes
|
- | ||
| cpe:2.3:h:cisco:1100_integrated_services_router:-:*:*:*:*:*: |
No
|
- | ||
| cpe:2.3:h:cisco:aironet_1540:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:aironet_1560:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:aironet_1800:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:aironet_2800:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:aironet_3800:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:aironet_4800:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:catalyst_9100:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:catalyst_iw6300:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:esw6300:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:o:cisco:catalyst_9800_firmware:*:*:*:*:*:*:*:* |
Yes
|
17.1 | 17.3.3 | |
| cpe:2.3:h:cisco:catalyst_9800:-:*:*:*:*:*:*:* |
No
|
- |