How severe is CVE-2025-55733?

CVE-2025-55733 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-55733 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55733?

CVE-2025-55733 affects Thinkinai Deepchat. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55733?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-55733 have an EU (EUVD) identifier?

Yes. CVE-2025-55733 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25237.

When was CVE-2025-55733 published?

CVE-2025-55733 was published on 2025-08-19 and last updated on 2026-06-17.

CVE-2025-55733

CVE-2025-55733 is a critical-severity vulnerability in Thinkinai Deepchat with a CVSS 3.x base score of 9.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25237
Weakness: CWE-94
Affected product: Thinkinai Deepchat
Published: 2025-08-19
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-55733?: 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.
How severe is CVE-2025-55733?: CVE-2025-55733 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-55733 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55733?: CVE-2025-55733 affects Thinkinai Deepchat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55733?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-55733 have an EU (EUVD) identifier?: Yes. CVE-2025-55733 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25237.
When was CVE-2025-55733 published?: CVE-2025-55733 was published on 2025-08-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:thinkinai:deepchat:0.3.0:*:*:*:*:*:*:*

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