CVE-2026-6637
Essential information
- Published
- 14/05/2026 14:16
- Modified
- 14/05/2026 16:21
- Author
- —
- Creator
- —
- CVSS
- 8.8 HIGH (v3.1)
- CISA KEV
- No
- CWE
- —
- CVSS vector
-
—
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H—
CVSS metrics
- Access vector
- —
- Access complexity
- —
- Authentication
- —
- Confidentiality impact
- —
- Integrity impact
- —
- Availability impact
- —
- Exploitability
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- NETWORK
- Attack complexity
- LOW
- Privileges required
- LOW
- User interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality impact
- HIGH
- Integrity impact
- HIGH
- Availability impact
- HIGH
- Exploit code maturity
- —
- Remediation level
- —
- Report confidence
- —
- Temporal score
- —
- Attack vector
- —
- Attack complexity
- —
- Attack requirements
- —
- Privileges required
- —
- User interaction
- —
- Confidentiality (V)
- —
- Confidentiality (S)
- —
- Integrity (V)
- —
- Integrity (S)
- —
- Availability (V)
- —
- Availability (S)
- —
- Exploit maturity
- —
Description
Stack buffer overflow in PostgreSQL module "refint" allows an unprivileged database user to execute arbitrary code as the operating system user running the database. A distinct attack is possible if the application declares a user-controlled column as a "refint" cascade primary key and facilitates user-controlled updates to that column. In that case, a SQL injection allows a primary key update value provider to execute arbitrary SQL as the database user performing the primary key update. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
NVD status
- Status
- Undergoing Analysis — CVE has been recently published to the CVE List and has been received by the NVD.
- Source
- f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
- NVD
- View on NVD
Affected products (CPE)
| Product | CPE |
|---|---|
| postgresql / postgresql | cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:* |
| postgresql / postgresql | cpe:2.3:a:postgresql:postgresql:<18.4:*:*:*:*:*:* |
| postgresql / postgresql | cpe:2.3:a:postgresql:postgresql:<17.10:*:*:*:*:*:* |
| postgresql / postgresql | cpe:2.3:a:postgresql:postgresql:<16.14:*:*:*:*:*:* |
| postgresql / postgresql | cpe:2.3:a:postgresql:postgresql:<15.18:*:*:*:*:*:* |
| postgresql / postgresql | cpe:2.3:a:postgresql:postgresql:<14.23:*:*:*:*:*:* |