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NVD / CVE Program· CNA ibm

CVE-2026-10534: IBM® Db2® is vulnerable to buffer overflow in the IXF IMPORT parser

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 39/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.37% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

Published
Aug 12, 2026
Updated
Oct 23, 2026
EPSS
0.3% · 31th percentile

Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.8
CNA · ibm
8.4
1.4 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-10534

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
ibmdb2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (ibm). Independent of NVD's CPE analysis and usually ahead of it.

  • IBM Db2

    • 11.5.0 and later · up to and including 11.5.9affected · semver
    • 12.1.0 and later · up to and including 12.1.5affected · semver

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • ibm db211.5 and later · up to 11.5.9 inclusive
  • ibm db212.1.0 and later · up to 12.1.5 inclusive

Same product

ibm: all records

Other highest-scoring records for the same primary product.

  • CVE-2007-2582Multiple buffer overflows in the DB2 JDBC Applet Server (DB2JDS) service in IBM DB2 9.x and earlier allow remote attackers to (1) execute…
    48Plan
  • CVE-2010-3731Stack-based buffer overflow in the validateUser implementation in the com.ibm.db2.das.core.DasSysCmd function in db2dasrrm in the DB2…
    43Plan
  • CVE-2010-3193Unspecified vulnerability in the DB2STST program in IBM DB2 9.1 before FP9, 9.5 before FP6, and 9.7 before FP2 has unknown impact and…
    41Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-18096Aug 12, 2026 · IBM® Db2® could allow a local attacker to cause a denial of service due to a memory leak
    13Monitor
  • ← EarlierCVE-2026-18097Aug 12, 2026 · IBM® Db2® federated server could allow a local attacker to obtain sensitive information due to the logging of plain text passwords in trace files.
    22Monitor
  • Later →CVE-2026-86087Sep 10, 2026 · IBM® Db2® could allow an authenticated user to send a specially crafted request to write arbitrary files on the system
    17Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-1053513 days apartIBM® Db2® is vulnerable to buffer overflow in setgid helper db2flacc which can lead to privilege escalation and instance compromise from an unprivileged shell
    31Monitor
  • CVE-2025-33092379 days apartIBM Db2 for Linux code execution
    31Monitor
  • CVE-2026-8609329 days apartIBM® Db2® federated server could allow an attacker with the ability to control or impersonate a DRDA server endpoint to execute arbitrary commands under…
    30Monitor
  • CVE-2024-47118278 days apartIBM Db2 is vulnerable to a denial of service as the server may crash under certain conditions with a specially crafted query
    30Monitor
  • CVE-2024-49828379 days apartIBM Db2 for Linux, UNIX and Windows denial of service
    30Monitor
  • CVE-2024-51473379 days apartIBM Db2 for Linux, UNIX and Windows denial of service
    30Monitor

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: patch commit or PR link · researcher credit.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-121 · Stack-based Buffer Overflow

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records