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Findings

CVE-2026-109448

Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memor

Published Oct 12, 2026 · corrected/updated Oct 15, 2026 · evidence confidence high

Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memory. psqlODBC stores the binding count in a signed 16-bit field. Binding parameter number 32768 wraps that count to -32768. Binding parameter 32769 then writes about 2.5 MB of zeros starting 1.25 MB before the binding array, which crashes the application or leaves it running on a corrupted heap. Applications that build parameter lists from untrusted input, such as an IN (?, ?, ...) list, are exposed. Versions before psqlODBC 18.00.0005 are affected.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2026-109448 is a medium public vulnerability record for this product. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether this product is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: psqlodbc (1:13.02.0000-2, 1:15.00.0000-1, 1:16.00.0000-1); psqlodbc (1:17.00.0004-2, 1:17.00.0005-1, 1:17.00.0006-1); psqlodbc (0 → 1:18.00.0005-1). Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 5.9, EPSS 0.2%. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-124, CWE-190. Sources contributing to this record: cve_org, epss, nvd, osv. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.

  • Patch and remediation

    No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Technology hubs

Debian

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 12, 2026 · OSV.dev

    Detected

    Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memory. psqlODBC stores the binding count in a signed 16-bit field. Binding parameter number 32768 wraps that count to -32768. Binding parameter 32769 then writes about 2.5 MB of zeros starting 1.25 MB before the binding arra

  2. Oct 15, 2026 · OSV.dev

    Fix available

    psqlodbc fixed in 1:18.00.0005-1

  3. Oct 15, 2026 · OSV.dev

    Fix available

    psqlodbc fixed in 1:18.00.0005-1

  4. Oct 15, 2026 · OSV.dev

    Updated

    Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memory. psqlODBC stores the binding count in a signed 16-bit field. Binding parameter number 32768 wraps that count to -32768. Binding parameter 32769 then writes about 2.5 MB of zeros starting 1.25 MB before the binding arra

  5. Oct 15, 2026 · NIST NVD

    Updated

    Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memory. psqlODBC stores the binding count in a signed 16-bit field. Binding parameter number 32768 wraps that count to -32768. Binding parameter 32769 then writes about 2.5 MB of zeros starting 1.25 MB before the binding arra

Affected

  • Debian:12 psqlodbc1:13.02.0000-2, 1:15.00.0000-1, 1:16.00.0000-1
  • Debian:13 psqlodbc1:17.00.0004-2, 1:17.00.0005-1, 1:17.00.0006-1
  • Debian:14 psqlodbc0 → 1:18.00.0005-1

Sources

  • CVE.orgVulnerability recordCVE-2026-109448

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-109448

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-109448

    Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memory. psqlODBC stores the binding count in a signed 16-bit field. Binding parameter number 32768 wraps

    nvd.nist.gov
  • OSV.devPackage advisoryDEBIAN-CVE-2026-109448
    osv.dev

References