ZDI-26-293
MEDIUM 4.3
Published
Apr 21, 2026
Microsoft Office URI Handler NTLM Response Information Disclosure Vulnerability
Microsoft
This vulnerability allows remote attackers to disclose NTLM responses on affected installations of Microsoft Office. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The ZDI has assigned a CVSS rating of 4.3.