CVE-2025-64185Network attack vector

Unauthorized gem modification via world-writable package paths

Published Nov 20, 2025 · Updated Nov 21, 2025

Insecure permissions in Open OnDemand 3.1.15 and earlier and 4.0.7 and earlier allow remote attackers to alter packaged gems. Open OnDemand packaging leaves /opt/ood/ondemand/root/usr/share/gems or /opt/ood/gems world writable in GEM_PATH instead of restricting writes to root. The advisory does not identify a request path to these host directories, so the bounded consequence is unauthorized modification of package-managed gem content.

CVSS severity6.9
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure permissions in Open OnDemand 3.1.15 and earlier and 4.0.7 and earlier allow remote attackers to alter packaged gems. Open OnDemand packaging leaves /opt/ood/ondemand/root/usr/share/gems or /opt/ood/gems world writable in GEM_PATH instead of restricting writes to root. The advisory does not identify a request path to these host directories, so the bounded consequence is unauthorized modification of package-managed gem content.

The record

CVE
CVE-2025-64185
Published
Nov 20, 2025
Updated
Nov 21, 2025
Vendor
Ohio Supercomputer Center
Product
Open OnDemand
Classifications
CWE-552, CWE-277
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 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=< 3.1.16
  2. Affected versionversion=< 4.0.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ohio Supercomputer Center · Open OnDemandversion=< 3.1.16; version=< 4.0.8

Published CVSS scores

6.9GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-552Files or Directories Accessible to External Parties
CWE-277Insecure Inherited Permissions

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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