---
title: "CVE-2026-82340: IBM Guardium Data Protection - Insecure Deserialization"
description: "IBM Guardium Data Protection 12.2 contains an insecure deserialization vulnerability caused by attacker-controlled reflective method dispatch in the Change Audit System listener, letting network attackers execute code remotely, exploit requires network access to TCP port 16017."
url: https://panop.io/threat-heartbeat/CVE-2026-82340/
---

# CVE-2026-82340 IBM Guardium Data Protection - Insecure Deserialization

IBM Guardium Data Protection 12.2 contains an insecure deserialization vulnerability caused by attacker-controlled reflective method dispatch in the Change Audit System listener, letting network attackers execute code remotely, exploit requires network access to TCP port 16017.

CVSS base score 9.8 /10

Critical

CISA KEV

Not listed

Public exploit

None known

EPSS

0.69% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-82340)

## Details

Type

Insecure Deserialization

Impact

Remote Code Execution

CVSS vector

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

Published

18 September 2026

Updated

15 October 2026

Weakness

[CWE-94](https://cwe.mitre.org/data/definitions/94.html)

## Vendor fix

Update to 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-2026-82340](https://nvd.nist.gov/vuln/detail/CVE-2026-82340)
- [https://www.ibm.com/support/pages/node/7288040](https://www.ibm.com/support/pages/node/7288040)

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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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