VDB
CVE-2026-6664
CVE-2026-6664
PUBLISHED
CVSS 7.5 HIGH
CVE-2026-6664 is a vulnerability that remote attackers without prior authentication, nor any user interaction, can exploit to cause a system crash via bypassing boundary checks. They can accomplish that by crafting a custom SCRAM authentication packet with improper form. This vulnerability stems from an integer overflow in the code section that processes network packages.
EPSS 0.05% · 14.6th percentile
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.05%
14.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| PgBouncer | PgBouncer versions before 1.25.2 |
Timeline
- May 9, 2026 EPSS Score
- May 9, 2026 CVE Published
- May 9, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
- May 13, 2026 Security Advisory
References
- https://ccb.belgium.be/advisories/warning-actively-exploited-integer-overflow-pgbouncer-patch-immediately advisory
- https://www.pgbouncer.org/changelog.html#pgbouncer-125x vendor
- https://nvd.nist.gov/vuln/detail/CVE-2026-6664 technical
- https://exploit-intel.com/vuln/CVE-2026-6664 technical
- https://github.com/nicolasjulian/bouncer-overflow technical