CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS
Percentile
75.3%
A vulnerability in the uuencode inspection engine of Cisco AsyncOS for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass engine protection and deliver a malicious file as an email attachment.
The vulnerability is due to improper implementation of the logic for decoding uuencoded content. An attacker could exploit this vulnerability sending a crafted uuencoded email message that contains a malicious attachment.
Cisco has confirmed the vulnerability in a security notice and released software updates.
Successful exploitation could allow the attacker to evade email filtering and deliver malicious content to a targeted user, which could be used to conduct further attacks. Administrators are advised to implement effective mitigations.
Vendor | Product | Version | CPE |
---|---|---|---|
cisco | email_security_appliance | any | cpe:2.3:h:cisco:email_security_appliance:any:*:*:*:*:*:*:* |