Typical severity: High. Likelihood of attack: Low. An attacker exploits a weakness in the parsing or display code of the recipient software to generate a data blob containing a supposedly valid signature, but the signer's identity is falsely represented, which can lead to the attacker manipulating the recipient software or its victim user to perform compromising actions.
Ensure the application is using parsing and data display techniques that will accurately display control characters, international symbols and markings, and ultimately recognize potential homograph attacks.