CVE-2025-55346
CVSS v3
9.8
CRITICAL
EPSS Score
20.8 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
User-controlled input flows to an unsafe implementation of a dynamic Function constructor, allowing network attackers to run arbitrary unsandboxed JS code in the context of the host, by sending a simple POST request.
Technical details
- Published
- 2025-08-14
Frequently asked questions
What is CVE-2025-55346?
User-controlled input flows to an unsafe implementation of a dynamic Function constructor, allowing network attackers to run arbitrary unsandboxed JS code in the context of the host, by sending a simple POST request.
Is CVE-2025-55346 actively exploited?
Active exploitation of CVE-2025-55346 has not been confirmed. Its EPSS score was 20.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-55346?
CVE-2025-55346 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2025-55346 affecting your environment?
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