---
title: "CVE-2026-15781: IBM DataPower Gateway - Buffer Overflow"
description: "IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 contain a buffer overflow in an unspecified component, letting remote authenticated attackers execute arbitrary code."
url: https://panop.io/threat-heartbeat/CVE-2026-15781/
---

# CVE-2026-15781 IBM DataPower Gateway - Buffer Overflow

IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 contain a buffer overflow in an unspecified component, letting remote authenticated attackers execute arbitrary code.

CVSS base score 8.0 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.38% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-15781)

## Details

Type

Buffer Overflow

Impact

Remote Code Execution

CVSS vector

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

Published

8 October 2026

Updated

15 October 2026

Weakness

[CWE-121](https://cwe.mitre.org/data/definitions/121.html)

## Vendor fix

Update to a version later than 11.0.0.2 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-15781](https://nvd.nist.gov/vuln/detail/CVE-2026-15781)
- [https://www.ibm.com/support/pages/node/7289775](https://www.ibm.com/support/pages/node/7289775)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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