CVE-2020-3133
High
Description
A vulnerability in the email message scanning of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured filters on the device. The vulnerability is due to improper validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email message to a recipient protected by the ESA. A successful exploit could allow the attacker to bypass the configured content filters, which could allow malicious content to pass through the device.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Cisco Email Security Appliance
PublishedSep 23, 2020
First seenSep 23, 2020
Weakness typeCWE-20Improper input validation
How to fix
Update
- cisco email_security_appliance13.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco email_security_appliance | v < 13.0 | 13.0 |
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