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Security Bulletin: IBM Virtualization Engine TS7700 is susceptible to Denial of Service.

Security Bulletin


Summary

IBM Virtualization Engine TS7700 is susceptible to denial-of-service condition due to the use of Python (CVE-2025-6069). TS7700 uses Python to perform operations with the Cloud and internal system configuration tasks.

Vulnerability Details

CVEID:   CVE-2025-6069
DESCRIPTION:   The html.parser.HTMLParser class had worse-case quadratic complexity when processing certain crafted malformed inputs potentially leading to amplified denial-of-service.
CWE:   CWE-1333: Inefficient Regular Expression Complexity
CVSS Source:   cna@python.org
CVSS Base score:   4.3
CVSS Vector:   (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Affected Product(s)Version(s)
IBM System Storage Virtualization Engine TS77003957-VED
IBM System Storage Virtualization Engine TS77003948-VED
IBM System Storage Virtualization Engine TS77003948-VEF

 

All versions of microcode for the IBM Virtualization Engine TS7700 (3957-VED, 3948-VED and 3948-VEF) prior to and including the following are affected:

 

Machine TypeModelReleaseVersion
3957VEDR5.48.54.2.17
R6.08.60.0.115
R6.18.61.0.60
3948VEDR5.48.54.2.17
R6.08.60.0.115
R6.18.61.0.60
VEFR6.08.60.0.115
R6.18.61.0.60

 

Note: End of Development (EoD) support was announced for 3957-VEC, effective 31 December 2023, after which time no more code fixes will be provided. Please see https://www.ibm.com/docs/en/announcements/2023-hardware-maintenance-services-withdrawal for more information. 

 

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by visiting https://tape.ibmrcl.enterpriseappointments.com/v2/ or contacting IBM Service at 1-800-IBM-SERV to arrange an upgrade to the latest microcode version followed by the installation of the appropriate VTD_EXEC as needed. Minimum microcode versions are shown below:

 

Machine TypeModelReleaseFix
3957VEDR5.4Upgrade to 8.54.2.17 + VTD_EXEC.407

-OR-

Upgrade to 8.54.1.27 + VTD_EXEC.407

R6.0Upgrade to 8.60.0.115 + VTD_EXEC.407
R6.1Upgrade to 8.61.0.60 + VTD_EXEC.407
3948VEDR5.4Upgrade to 8.54.2.17 + VTD_EXEC.407

-OR-

Upgrade to 8.54.1.27 + VTD_EXEC.407

R6.0Upgrade 8.60.0.115 + VTD_EXEC.407
R6.1Upgrade to 8.61.0.60 + VTD_EXEC.407
VEFR6.0Upgrade 8.60.0.115 + VTD_EXEC.407
R6.1Upgrade to 8.61.0.60 +VTD_EXEC.407

 

The minimum VTD_EXEC version is shown below:

 

VTD_EXEC PackageVersion
VTD_EXEC.407v3.01

 

Installation Details

ConcurrentYes
Local Machine StateOnline
Remote Machine StateOnline
Time of InstallationAnytime
Installation Time Required (mins)30

 

Workarounds and Mitigations

Although IBM recommends that you upgrade to the fixes identified above, you can mitigate, but not eliminate the risk of these vulnerabilities by restricting physical and network access to the TS7700 to authorized users and IBM Service Personnel only.

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

02 Feb 2026: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location

Worldwide

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Document Information

Modified date:
05 February 2026

Initial Publish date:
02 February 2026

UID

ibm17259336