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Total Storage Service ConsoleApplication · Ibm

CVE-2026-5935

CRITICAL · 9.8 CVSS v3.1 Published 2026-04-23
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
IBM Total Storage Service Console (TSSC) / TS4500 IMC 9.2, 9.3, 9.4, 9.5, 9.6 TSSC/IMC could allow an unauthenticated user to execute arbitrary commands with normal user privileges on the system due to improper validation of user supplied input.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

IBM Total Storage Service Console (TSSC) and TS4500 IMC versions 9.2 through 9.6 contain a command injection vulnerability allowing unauthenticated attackers to execute arbitrary system commands by submitting specially crafted input to user-facing fields, due to improper validation of user-supplied data.

MitigationApply IBM security patches for CVE-2026-5935 or upgrade to a patched version. If no vendor patch is available, immediately restrict network access to TSSC/IMC management interfaces using firewall rules or network segmentation to prevent unauthenticated access.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Total Storage Service ConsoleApplication
Affected:= 9.2= 9.3= 9.4= 9.5= 9.6
Ts4500 ImcApplication
Affected:= 9.2= 9.3= 9.4= 9.5= 9.6

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if IBM TSSC or TS4500 IMC is installed
    Check for running services on common web ports (likely 8443, 443, 8080) or look for IBM TSSC/TS4500 processes in the system process list. Check if the IBM Total Storage Service Console or TS4500 IMC web interface is accessible via browser at typical management URLs.
    Affected if The product is installed and the web interface is accessible on the network.
  2. Determine the installed version
    Access the web interface login page or about/version section. Alternatively, check installed software packages or consult the system inventory for IBM Total Storage Service Console or TS4500 IMC version information.
    Affected if The installed version is 9.2, 9.3, 9.4, 9.5, or 9.6.
  3. Verify if management interface is network-exposed
    Review firewall rules, network configurations, and ACLs to determine if the TSSC/IMC web management port is exposed to untrusted networks or the public internet. Check if the interface listens on all interfaces (0.0.0.0) versus localhost only.
    Affected if The management interface is accessible from untrusted network segments or the internet without network filtering.
  4. Confirm authentication is enforced on the interface
    Attempt to access the login page and verify that authentication credentials are required. Check if unauthenticated endpoints or fields are reachable without a session token.
    Affected if The interface does not require authentication or allows unauthenticated access to user-facing input fields.

You are affected if IBM Total Storage Service Console or TS4500 IMC versions 9.2 through 9.6 are installed and the web management interface is network-accessible without proper network restrictions.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply IBM security patches for CVE-2026-5935 or upgrade to a patched version. If no vendor patch is available, immediately restrict network access to TSSC/IMC management interfaces using firewall rules or network segmentation to prevent unauthenticated access.

Recommended fix Moderate confidence

IBM Total Storage Service Console / TS4500 IMC version 9.6 or later (contact IBM for exact fixed release)

  1. Identify the current version of IBM Total Storage Service Console (TSSC) or TS4500 IMC installed on the system
  2. Contact IBM support or visit the official IBM support portal to obtain the security patch or fixed release
  3. Apply the IBM-provided security update following IBM's documented installation procedures
  4. Verify the update was successful by checking the software version and confirming the vulnerability is resolved
  5. Ensure network access controls are in place to limit exposure until the patch can be applied
Caveat Review IBM's release notes for version 9.6 for any compatibility or configuration changes before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Total Storage Service Console Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing12.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,760
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-5935 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data