A vulnerability in the Sender Policy Framework (SPF) functionality of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote malicious user to bypass the configured user filters on an affected device. The vulnerability exists because the affected software insufficiently validates certain incoming SPF messages. An attacker could exploit this vulnerability by sending a custom SPF packet to an affected device. A successful exploit could allow the malicious user to bypass the configured header filters, which could allow malicious content to pass through the device.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
cisco email security appliance firmware |
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