How severe is CVE-2025-54133?

CVE-2025-54133 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-2025-54133 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-54133?

CVE-2025-54133 affects Anysphere Cursor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-54133?

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-2025-54133 have an EU (EUVD) identifier?

Yes. CVE-2025-54133 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23406.

When was CVE-2025-54133 published?

CVE-2025-54133 was published on 2025-08-02 and last updated on 2026-06-17.

CVE-2025-54133

CVE-2025-54133 is a critical-severity vulnerability in Anysphere Cursor 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-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
CVSS v4: 5.3
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-23406
Weakness: CWE-78
Affected product: Anysphere Cursor
Published: 2025-08-02
Last modified: 2026-06-17

Description

Cursor is a code editor built for programming with AI. In versions 1.17 through 1.2, there is a UI information disclosure vulnerability in Cursor's MCP (Model Context Protocol) deeplink handler, allowing attackers to execute 2-click arbitrary system commands through social engineering attacks. When users click malicious `cursor://anysphere.cursor-deeplink/mcp/install` links, the installation dialog does not show the arguments being passed to the command being run. If a user clicks a malicious deeplink, then examines the installation dialog and clicks through, the full command including the arguments will be executed on the machine. This is fixed in version 1.3.

Frequently asked questions

What is CVE-2025-54133?: Cursor is a code editor built for programming with AI. In versions 1.17 through 1.2, there is a UI information disclosure vulnerability in Cursor's MCP (Model Context Protocol) deeplink handler, allowing attackers to execute 2-click arbitrary system commands through social engineering attacks. When users click malicious `cursor://anysphere.cursor-deeplink/mcp/install` links, the installation dialog does not show the arguments being passed to the command being run. If a user clicks a malicious deeplink, then examines the installation dialog and clicks through, the full command including the arguments will be executed on the machine. This is fixed in version 1.3.
How severe is CVE-2025-54133?: CVE-2025-54133 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-2025-54133 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-54133?: CVE-2025-54133 affects Anysphere Cursor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-54133?: 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-2025-54133 have an EU (EUVD) identifier?: Yes. CVE-2025-54133 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23406.
When was CVE-2025-54133 published?: CVE-2025-54133 was published on 2025-08-02 and last updated on 2026-06-17.

References

https://github.com/cursor/cursor/security/advisories/GHSA-r22h-5wp2-2wfv

Affected products (1)

cpe:2.3:a:anysphere:cursor:*:*:*:*:*:*:*:*

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