CVE-2025-58435Network attack vector

Session takeover via stale VNC password

Published Sep 9, 2025 · Updated Sep 10, 2025

CWE-262 in Open OnDemand before 3.1.15 and 4.0.0-0.rc1 through 4.0.6 allows remote authenticated users to take over VNC sessions. The noVNC batch_connect integration fails to rotate its VNC password when TurboVNC is higher than 3.1.2, leaving a prior session credential valid. A second portal-authenticated user must receive a live desktop link; the stale credential then grants the original user's session actions and data.

CVSS severityUnavailable
Unscored
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

CWE-262 in Open OnDemand before 3.1.15 and 4.0.0-0.rc1 through 4.0.6 allows remote authenticated users to take over VNC sessions. The noVNC batch_connect integration fails to rotate its VNC password when TurboVNC is higher than 3.1.2, leaving a prior session credential valid. A second portal-authenticated user must receive a live desktop link; the stale credential then grants the original user's session actions and data.

The record

CVE
CVE-2025-58435
Published
Sep 9, 2025
Updated
Sep 10, 2025
Vendor
Ohio Supercomputer Center
Product
Open OnDemand
Classifications
CWE-262, T1550
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 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=< 3.1.15
  2. Affected versionversion=>= 4.0.0-0.rc1, < 4.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ohio Supercomputer Center · Open OnDemandversion=< 3.1.15; version=>= 4.0.0-0.rc1, < 4.0.7

Published CVSS scores

4.1GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-262Not Using Password Aging
T1550Use Alternate Authentication Material

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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