Critical severity · published Aug 19, 2025
CVE-2025-55733
DeepChat One-click Remote Code Execution through Custom URL Handling
9.6
CVSS
0.7%
EPSS
No
On KEV
Description
DeepChat is a smart assistant that connects powerful AI to your personal world. DeepChat before 0.3.1 has a one-click remote code execution vulnerability. An attacker can exploit this vulnerability by embedding a specially crafted deepchat: URL on any website, including a malicious one they control. When a victim visits such a site or clicks on the link, the browser triggers the app’s custom URL handler (deepchat:), causing the DeepChat application to launch and process the URL, leading to remote code execution on the victim’s machine. This vulnerability is fixed in 0.3.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DE
deepchat · ThinkInAIXYZ
< 0.3.1 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-55733
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-55733
Patch
https://github.com/ThinkInAIXYZ/deepchat/commit/a0ff6f362e01ddceb7fd42d0af0b28b6184fb4d2
Exploit
https://github.com/ThinkInAIXYZ/deepchat/security/advisories/GHSA-hqr4-4gfc-5p2j
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