Integer overflow in PostgreSQL Psqlodbc
CVE-2026-120064
Several psqlODBC entry points use an application-supplied column number or row index as an array index without validating it. SQLBindCol with a column number above 32767 wraps the binding count negative and a later copy runs off the array. A negative SQL_DESC_COUNT on an application row descriptor unbinds columns at negative indexes. SQLColAttribute with a very large column number uses a negative index. SQLSetPos(SQL_ADD) does not check the row number against the rowset size. An application that forwards untrusted column or row numbers exposes its process to out-of-bounds reads and writes. Versions before psqlODBC 18.00.0006 are affected.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-120064?
- CVE-2026-120064 is a high-severity vulnerability in PostgreSQL Psqlodbc, classified under Improper Validation of Array Index. CVSS score: 7.5/10. Published 2026-11-02.
- How severe is CVE-2026-120064?
- High severity. CVSS v3 base score is 7.5 out of 10.