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CVE-2021-3393 is a medium severity vulnerability with a CVSS score of 4.3. No known exploits currently, and patches are available.
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Very low probability of exploitation
EPSS predicts the probability of exploitation in the next 30 days based on real-world threat data, complementing CVSS severity scores with actual risk assessment.
An information leak was discovered in postgresql in versions before 13.2, before 12.6 and before 11.11. A user having UPDATE permission but not SELECT permission to a particular column could craft queries which, under some circumstances, might disclose values from that column in error messages. An attacker could use this flaw to obtain information stored in a column they are allowed to write but not read.
| Vendor | Product |
|---|---|
| Redhat | Enterprise Linux |
| Redhat | Software Collections |
| PostgreSQL | PostgreSQL |