CVE-2026-6473HIGH 8.8EPSS p31.7%
CVE-2026-6473CVE-2026-6473
Description
Integer wraparound in multiple PostgreSQL server features allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds. This may execute arbitrary code as the operating system user running the database. In applications that pass gigabyte-scale user inputs to the relevant database functions, the application input provider may achieve a segmentation fault. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.
Scoring
| CVSS 3.1 | 8.8 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.40% probability of exploitation · percentile 31.7% · 2026-06-19T12:03:05Z |
| Published | 2026-05-14 |
| Last modified | 2026-05-18 |
Underlying weaknesses· 1
References
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Integer Overflow or Wraparoundcwe-190 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.