CVE-2025-66453

Rhino is an open-source implementation of JavaScript written entirely in Java. Prior to 1.8.1, 1.7.15.1, and 1.7.14.1, when an application passed an attacker controlled float poing number into the toFixed() function, it might lead to high CPU consumption and a potential Denial of Service. Small numbers go through this call stack: NativeNumber.numTo > DToA.JS_dtostr > DToA.JS_dtoa > DToA.pow5mult where pow5mult attempts to raise 5 to a ridiculous power. This vulnerability is fixed in 1.8.1, 1.7.15.1, and 1.7.14.1.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/mozilla/rhino/security/advisories/GHSA-3w8q-xq97-5j7x	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mozilla:rhino::::::::
	cpe:2.3:a:mozilla:rhino:1.7.15:::::::*
	cpe:2.3:a:mozilla:rhino:1.8.0:::::::*

History

14 Apr 2026, 15:39

Type	Values Removed	Values Added
First Time		Mozilla Mozilla rhino
CPE		cpe:2.3:a:mozilla:rhino:1.8.0:::::::* cpe:2.3:a:mozilla:rhino:::::::: cpe:2.3:a:mozilla:rhino:1.7.15:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
References	~~() https://github.com/mozilla/rhino/security/advisories/GHSA-3w8q-xq97-5j7x -~~	() https://github.com/mozilla/rhino/security/advisories/GHSA-3w8q-xq97-5j7x - Vendor Advisory

03 Dec 2025, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-03 20:16

Updated : 2026-04-14 15:39

NVD link : CVE-2025-66453

Mitre link : CVE-2025-66453

CVE.ORG link : CVE-2025-66453

JSON object : View

Products Affected

mozilla

rhino

CWE

CWE-400

Uncontrolled Resource Consumption

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