VulnerabilityAnalyzed
CVE-2026-6664
An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash.
HIGH 7.5EPSS 0.70%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.70%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An integer overflow in network packet parsing code in PgBouncer before 1.25.2 bypasses a boundary check and can lead to a crash. An unauthenticated remote attacker can crash PgBouncer with a malformed SCRAM authentication packet.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.70% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- pgbouncer/pgbouncer
- Source
- f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.