Security Bulletin
Summary
IBM Virtualization Engine TS7700 is susceptible to vulnerabilities that could permit remote code execution, privilege escalation, unauthorized access to information, modification of data, or denial of service due to the use of IBM Db2. TS7700 embeds Db2 internally to manage metadata governing logical volume management and other related system and Grid configurations. (CVE-2026-7771, CVE-2026-10535, CVE-2026-10109, CVE-2025-36009, CVE-2026-16480, CVE-2026-10543, CVE-2026-10534)
Vulnerability Details
CVEID: CVE-2026-7771
DESCRIPTION: IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to a trap when compiling a specially crafted statements containing subqueries could lead to a denial of service.
CWE: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
CVSS Source: IBM
CVSS Base score: 5.5
CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
CVEID: CVE-2026-10535
DESCRIPTION: IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to buffer overflow in setgid helper db2flacc.
CWE: CWE-121: Stack-based Buffer Overflow
CVSS Source: IBM
CVSS Base score: 8.4
CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2026-10109
DESCRIPTION: IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to remote code execution due to improper pre-auth DRDA handshake handling.
CWE: CWE-94: Improper Control of Generation of Code ('Code Injection')
CVSS Source: IBM
CVSS Base score: 9.8
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2025-36009
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an authenticated user to cause a denial of service due to excessive use of a global variable.
CWE: CWE-1284: Improper Validation of Specified Quantity in Input
CVSS Source: IBM
CVSS Base score: 6.5
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2026-16480
DESCRIPTION: IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is affected by an improper authorization vulnerability in the certain command, allowing a non-privileged user to bypass authority checks and modify database catalog data.
CWE: CWE-602: Client-Side Enforcement of Server-Side Security
CVSS Source: IBM
CVSS Base score: 4.3
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2026-10543
DESCRIPTION: IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is vulnerable to privilege escalation with a specially crafted query.
CWE: CWE-285: Improper Authorization
CVSS Source: IBM
CVSS Base score: 8.2
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N)
CVEID: CVE-2026-10534
DESCRIPTION: IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is vulnerable to buffer overflow in the IXF IMPORT parser.
CWE: CWE-121: Stack-based Buffer Overflow
CVSS Source: IBM
CVSS Base score: 8.4
CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM System Storage Virtualization Engine TS7700 | 3957-VED |
| IBM System Storage Virtualization Engine TS7700 | 3948-VED |
| IBM System Storage Virtualization Engine TS7700 | 3948-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 Type | Model | Release | Version |
| 3957 | VED | R6.0 | 8.60.0.116 |
| R6.1 | 8.61.0.60 | ||
| 3948 | VED | R6.0 | 8.60.0.116 |
| R6.1 | 8.61.0.60 | ||
| VEF | R6.0 | 8.60.0.116 | |
| R6.1 | 8.61.0.60 |
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. Minimum microcode versions are shown below:
| Machine Type | Model | Release | Fix |
| 3957 | VED | ||
| R6.0 | Upgrade 8.60.1.6 | ||
| R6.1 | Upgrade to 8.61.1.8 | ||
| 3948 | VED | ||
| R6.0 | Upgrade 8.60.1.6 | ||
| R6.1 | Upgrade to 8.61.1.8 | ||
| VEF | R6.0 | Upgrade 8.60.1.6 | |
| R6.1 | Upgrade to 8.61.1.8 |
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
Acknowledgement
Change History
19 Oct 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
Was this topic helpful?
Document Information
Modified date:
19 October 2026
Initial Publish date:
19 October 2026
UID
ibm17292358