CVE-2025-55058Network attack vector

Service interruption via undisclosed input validation flaw

Published Nov 17, 2025 · Updated Nov 18, 2025

Improper input validation in Maxum Development Corp. Rumpus 9.0.12 allows remote authenticated users to interrupt its service. INCD has not disclosed the affected component, accepted input, or incorrect validation operation. Exploitation requires high privileges and user interaction; the record limits impact to availability but does not identify a hang, crash, or other interruption.

CVSS severity4.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Maxum Development Corp. Rumpus 9.0.12 allows remote authenticated users to interrupt its service. INCD has not disclosed the affected component, accepted input, or incorrect validation operation. Exploitation requires high privileges and user interaction; the record limits impact to availability but does not identify a hang, crash, or other interruption.

The record

CVE
CVE-2025-55058
Published
Nov 17, 2025
Updated
Nov 18, 2025
Vendor
Maxum Development Corp.
Product
Rumpus
Classifications
CWE-20
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Nov 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.0.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Maxum Development Corp. · Rumpusversion=9.0.12

Published CVSS scores

4.5Israel National Cyber DirectorateCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
9.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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