---
title: "CVE-2026-120058: psqlODBC - Out of Bounds Read/Write"
description: "psqlODBC before 18.00.0006 contains a buffer overflow caused by inconsistent column count handling in FETCH replies with UseDeclareFetch enabled, letting untrusted servers write past allocated heap memory."
url: https://panop.io/threat-heartbeat/CVE-2026-120058/
---

# CVE-2026-120058 psqlODBC - Out of Bounds Read/Write

psqlODBC before 18.00.0006 contains a buffer overflow caused by inconsistent column count handling in FETCH replies with UseDeclareFetch enabled, letting untrusted servers write past allocated heap memory.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-120058)

## Details

Type

Out of Bounds Read/Write

Impact

Remote Code Execution, Denial Of Service

CVSS vector

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

Published

2 November 2026

Updated

3 November 2026

Weakness

[CWE-191](https://cwe.mitre.org/data/definitions/191.html)

## Vendor fix

Update to version 18.00.0006 or later.

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-2026-120058](https://nvd.nist.gov/vuln/detail/CVE-2026-120058)
- [https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-6rmx-9q62-4w6m](https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-6rmx-9q62-4w6m)

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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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