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CVE-2021-1534
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
A vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. This vulnerability is due to improper processing of URLs. An attacker could exploit this vulnerability by crafting a URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for an affected device, which could allow malicious URLs to pass through the device..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 5/10
- Exploit Score
- 10/10
- Access Vector
- Network
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 2.9/10
- Confidentiality Impact
- None
- Availability Impact
- None
- Integrity Impact
- Partial
CVSSv3.1 Score
- Severity
- Medium
- Base Score
- 5.3/10
- Exploit Score
- 3.9/10
- Access Vector
- Network
- Access Complexity
- Low
- Privileges Required
- None
- Impact Score
- 1.4/10
- Confidentiality Impact
- None
- Availability Impact
- None
- Integrity Impact
- Low
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:* |
Yes
|
- | 14.0.1 | |
cpe:2.3:h:cisco:email_security_appliance_c170:-:*:*:*:*:*:*: |
No
|
- | ||
cpe:2.3:h:cisco:email_security_appliance_c190:-:*:*:*:*:*:*: |
No
|
- | ||
cpe:2.3:h:cisco:email_security_appliance_c380:-:*:*:*:*:*:*: |
No
|
- | ||
cpe:2.3:h:cisco:email_security_appliance_c390:-:*:*:*:*:*:*: |
No
|
- | ||
cpe:2.3:h:cisco:email_security_appliance_c680:-:*:*:*:*:*:*: |
No
|
- | ||
cpe:2.3:h:cisco:email_security_appliance_c690:-:*:*:*:*:*:*: |
No
|
- | ||
cpe:2.3:h:cisco:email_security_appliance_c690x:-:*:*:*:*:*:* |
No
|
- |